Early Spring 2023 Event/E-1

Time remaining until Event ends [1]: 1 May 2023 11:00:00 +0900 The Early Spring 2023 Event has ended!
KC anniversary maintenance has started, time remaining until maintenance ends [2]: (~4h event pause) 23 April 2023 20:30:00 +0900 The maintenance has ended. See 2023-04-23 patch notes.
Early Spring 2023 Event Hub Overview Introduction & Overview Main Operation Maps Extra Operation Maps E-1 | E-2 | E-3 E-4 | E-5 | E-6

Operation S21
S21作戦

Information
Event Tag	Yokosuka Defence Squadron
Boss Gauges	Hard (甲): 470 HP + 1950 HP
	Medium (乙): 280 HP + 540 HP
	Easy (丙): 280 HP + 540 HP
	Casual (丁): 280 HP + 390 HP
Map Bosses	Light Carrier Nu-Class Kai Flagship
	Submarine Princess Kai B Flagship IV

Rewards[edit]
Choice	丁 Casual	丙 Easy	乙 Medium	甲 Hard
Food Supply Ship Mamiya		1	1	2
OR
Improvement Material		3	3	6
THEN
Type 2 Depth Charge	1	1	2	2
OR
Fuel	2000	2000	4000	4000
THEN
Medal	1	1	1	1
OR
Akashi	1	1	1	1

Reward	丁 Casual	丙 Easy	乙 Medium	甲 Hard
Food Supply Ship Irako	1	1	2	3
Emergency Repair Goddess			1	2
Reinforcement Expansion			1	1
Type 3 Command Liaison Aircraft Kai		1 (★1)	1 (★3)	1 (★5)
Type 1 Fighter Hayabusa Model II Kai (20th Squadron)				1

Rewards
All
Equipment/Item	丁 Casual	丙 Easy	乙 Medium	甲 Hard

The event guides are to be constructed through the respective Event map page guide sandbox and reviewed by editors before being approved here.

• Do not update the guides through this page unless it is a minor fix. Please only update guides through their respective sandbox pages.

Branching Table

E-1 Branching Rules
Nodes		Rules
A	B	Active Branching
	E
C	C1	Active Branching
	C3
C1	C2	Pass the LoS check (Cn3=45 Hard)
	D	Fail the LoS check
C3	C1	Does not meet the requirements to go to O Pass the LoS check
	N	Fail the LoS check
	O	Meet ALL of the following requirements: Amount of DE ≤ 2 Pass the LoS check (Cn3=40~45 Hard)
F	G	Does not meet the requirements to go to H
	H	Meet ALL of the following requirements: Amount of (F)BB(V) ≤ ? Amount of CV(B) = 0 Amount of CVL ≤ 2 Meet ANY of the following requirements: Amount of CL ≥ 1 Amount of DD+DE ≤ 4 Amount of ships ≤ 3 ?
G	G1	Does not meet the requirements for G2
	G2	Meet ALL of the following requirements: Fast fleet Amount of CV(B) = 0 Amount of DD ≥ 5
H	H1	Active Branching
	H2
H1	H2	Does not meet the requirements to go to J
	J	Meet ANY of the following requirements: Amount of DD+DE ≥ 5 Amount of DD+DE ≤ 1 ? Amount of (F)BB(V) ≥ 2 Amount of LHA ≥ 1 Amount of ships ≤ 3 ???
H2	I	Node K is locked Fail the LoS check
	K	Node K is unlocked Pass the LoS check (Cn3=45 Hard)
K	L	Does not meet the requirements to go to M
	M	Meet ALL of the following requirements: Amount of DD+DE ≥ 2 Pass the LoS check (Cn3=50 Hard)
P	Q	Does not meet the requirements to go to M
	S	Meet ALL of the following requirements: Amount of DD+DE ≥ 3 If slow, amount of CV = 0 Pass the LoS check (Cn3=50 Hard) ???
Q	R	Fail the LoS check ???
	S	Pass the LoS check ???

Branching compositions were reported over the course of the event. (NGA and KCNav)

Historical Bonuses

DISCLAIMER: This information is based on user submitted data and is subject to revisions as more data is gathered. Any version of the ship receives the bonus regardless of remodel.

Ship Bonuses

Ships	Map-wide
	Damage	Acc/Eva
Coastal Defense Ships (DE)	1.12x	1.12x
Destroyers (DD)	1.03x	1.03x
Light Cruisers (CL) Torpedo Cruisers (CLT)	1.02x	1.05x
Seaplane Tenders (AV)	1.14x	-
	1.16x	-
	1.28x(?)	-

[3][4][5][6][7]

Equipment Bonuses

Equipment	Damage Map-wide
Rotorcraft	1.05x each (stackable)
Liaison Aircraft	1.07x each (stackable)

[8][9][10]

Map Overview

E-1 consists of 2 main phases and only allows the use of Single Fleets.

• This map uses 1 lock:
  • Yokosuka Defence Squadron
• 1 LBAS is available to sortie into this map
• A new node type is introduced in this map :
  • "Airstrike Supported Battle" nodes on nodes H2 P Q.
• CT can be a good replacement for CL throughout the map.
  • As numerous submarines are present on this map, CL/CT should be able to OASW.

Phase 0.5: Unlock the first Boss Node

The following steps have to be performed to unlock the first boss:

	C2	G2	J
Hard	S	S	S
Medium	?	A+	A+
Easy	A+	A+	A+
Casual	A+	-	A+

• Single Fleet: 0-1CV(L)/CVE, 0-1CL/CT, 5-6DD/DE
• Route: 1 A B C C1 C2
  • C2 is a submarine node. ASW equipment should be used for S rank.
  • An LBAS figher sweep can help pass the air node C1.
  • Bringing an AACI capable ship is recommended to pass through the air node.
  • There is an LOS check to reach the node
    • LOS: Cn4 = 32/45/49/65 for Casual/Easy/Medium/Hard

• Single Fleet: 0-1CV(L)/CVE, 5-6DD/DE
• Route: 1 A E F G G2
  • G2 is a submarine node. ASW equipment should be used for S rank.
  • A 5-6DD fleet ONLY will skip node G1.
    • Otherwise, an LBAS strike can help pass node G1.
  • Bringing an AACI capable ship is recommended to pass through the air node.

• Single Fleet: 1CL/CT, 5DD/DE
• Route: 1 A E F H H1 J
  • J is a Submarine node. ASW equipment should be used for S rank.
  • An LBAS figher sweep can help pass the air node H1.
  • Bringing an AACI capable ship is recommended to pass through the air node.

Phase 1 - Destroy the First Boss

• H2 is the new "Airstrike Supported Battle" node.
  • The CVL on the node is unkillable.

• Single Fleet: 1CL/CT, 5DD/DE
• Route: 1 A E F H H2 K M
  • Support Expedition may be needed in this case.

• Single Fleet: 1CVL/CVE, 0-1CAV, 0-1CLT, 1CL/CT, 2-4DD/DE
• Route: 1 A E F H H2 K M
  • Heaviest fleet possible for this node.

• AD/AP = 89/177 on HARD
• LBAS Range = 7 to M.
• Bringing an AACI capable ship is recommended to pass through the "Airstrike Supported Battle" node.
• LOS: Cn4 = 32/45/49/65 for Casual/Easy/Medium/Hard

Phase 2 - Submerge the Submarine Princess

• Single Fleet: 1CV(L)/CVE, 0-1CLT, 1CL/CT, 3-4DD/DE
• Route: 1 A B C C3 O P S
  • A light fleet, limited to ships previously used on this map.

• Single Fleet: 1FBB, 1CV(L)/CVE, 1CL/CT, 3-4DD/DE
• Route: 1 A B C C3 O P S
  • A heavier fleet, allowing for a "Second Shelling Phase".
  • The fleet can be "Slow".

• AD/AP = 89/177 for HARD
• LBAS Range = 2
• Fleet must contain at least 1CL/CT & 3DD.
• The enemy flagship is Submarine Princess
  
  
  .
  • Bringing ASW equipment should be used to focus on killing the flagship, ignoring the other ships.
• The use of ASW aircraft in the LBAS is recommended if the ships struggle to kill the boss.
• Bringing an AACI capable ship is recommended to pass through the air node and for the boss.
• P is the new "Airstrike Supported Battle" node.
• LOS: Cn4: 32/44/48/65 for Casual/Easy/Medium/Hard

Enemy Compositions

Type	Ships
AS

Type	Ships
DD
AS
AO

Type	Ships
DE
DD
CL
AO

E-1 Hard AB

#	Formation	Air Raids	AD/AP AS/AS+
AB	Line Ahead		86/171 384/768
	Line Ahead		100/200 449/897
	Line Ahead		72/143 320/639
#	Formation	Air Raids	AD/AP AS/AS+

E-1 Hard A

#	Selection Node
A	艦隊の針路を選択できます。提督、どちらの針路をとられますか？ You can decide the fleet's course. Admiral, which heading should we take?
#	Selection Node

E-1 Hard B: 深海潜水艦隊 侵入哨戒 I群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
B	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Hard C

#	Selection Node
C	艦隊の針路を選択できます。提督、どちらの針路をとられますか？ You can decide the fleet's course. Admiral, which heading should we take?
#	Selection Node

E-1 Hard C1: 深海空母機動部隊 艦載機群 (PoiDB)

#	Formation	Air Defense Node	AD/AP AS/AS+
C1	Diamond Phases: 1, 2		36/71 159/318
	Diamond Phases: 1, 2		71/142 318/636
	Diamond Phases: 1, 2		78/155 348/696
#	Formation	Air Defense Node	AD/AP AS/AS+

E-1 Hard C2: 深海潜水艦隊 第二哨戒線 A群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
C2	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Hard C3: 深海任務部隊 前衛ピケット線 A群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
C3	Line Ahead Double Line Phases: 1, 2		0/0 0/0
	Line Ahead Phases: 1, 2		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Hard D

#	Empty Node
D	敵影を見ず。 No enemy spotted.
#	Empty Node

E-1 Hard E

#	Empty Node
E	気のせいだった。 Must be my imagination.
#	Empty Node

E-1 Hard F: 深海潜水艦隊 侵入哨戒 II群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
F	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Hard G: 深海空母機動部隊 艦載機群 (PoiDB)

#	Formation	Air Defense Node	AD/AP AS/AS+
G	Diamond Phases: 1		36/71 159/318
	Diamond Phases: 1		71/142 318/636
	Diamond Phases: 1		78/155 348/696
#	Formation	Air Defense Node	AD/AP AS/AS+

E-1 Hard G1: 深海任務部隊 前衛偵察機動部隊 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
G1	Diamond Phases: 1		36/71 159/318
	Diamond Phases: 1		71/142 318/636
	Diamond Phases: 1		36/71 159/318
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Hard G2: 深海潜水艦隊 第二哨戒線 B群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
G2	Echelon Line Abreast Phases: 1		0/0 0/0
	Echelon Line Abreast Phases: 1		0/0 0/0
	Echelon Line Abreast Phases: 1		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Hard H

#	Selection Node
H	艦隊の針路を選択できます。提督、どちらの針路をとられますか？ You can decide the fleet's course. Admiral, which heading should we take?
#	Selection Node

E-1 Hard H1: 深海空母機動部隊 艦載機群 (PoiDB)

#	Formation	Air Defense Node	AD/AP AS/AS+
H1	Diamond Phases: 1, 2		78/155 348/696
	Diamond Phases: 1, 2		85/169 378/756
	Diamond Phases: 1, 2		71/142 318/636
#	Formation	Air Defense Node	AD/AP AS/AS+

E-1 Hard H2: 深海潜水艦隊・深海航空支援 (PoiDB)

#	Formation	Supported Battle Node	AD/AP AS/AS+
H2	Echelon Line Abreast Phases: 1, 2		43/85 189/378
	Echelon Line Abreast Phases: 1, 2		36/71 159/318
	Echelon Line Abreast Phases: 1, 2		36/71 159/318
#	Formation	Supported Battle Node	AD/AP AS/AS+

E-1 Hard I

#	Empty Node
I	敵影を見ず。 No enemy spotted.
#	Empty Node

E-1 Hard J: 深海潜水艦隊 第二哨戒線 C群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
J	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Hard K: 深海任務部隊 機動部隊随伴護衛 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
K	Line Ahead Double Line Phases: 1, 2		0/0 0/0
	Line Ahead Phases: 1		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Hard L: 深海潜水艦隊 第二哨戒線 D群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
L	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Hard M: 深海任務部隊 前衛空襲機動部隊 (PoiDB)

#	Formation	Boss Battle Node	AD/AP AS/AS+
M	Line Ahead Diamond Phases: 1, 2		87/173 387/774
	Line Ahead Phases: 1 (Final)		89/177 396/792
#	Formation	Boss Battle Node	AD/AP AS/AS+

E-1 Hard N

#	Empty Node
N	敵影を見ず。 No enemy spotted.
#	Empty Node

E-1 Hard O

#	Empty Node
O	気のせいだった。 Must be my imagination.
#	Empty Node

E-1 Hard P: 深海潜水艦隊・深海航空支援 (PoiDB)

#	Formation	Supported Battle Node	AD/AP AS/AS+
P	Echelon Line Abreast Phases: 2		43/85 189/378
	Echelon Line Abreast Phases: 2		36/71 159/318
	Echelon Line Abreast Phases: 2		36/71 159/318
#	Formation	Supported Battle Node	AD/AP AS/AS+

E-1 Hard Q: 深海潜水艦隊・深海航空支援 (PoiDB)

#	Formation	Supported Battle Node	AD/AP AS/AS+
Q	Echelon Line Abreast Phases: 2		36/71 159/318
	Echelon Line Abreast Phases: 2		36/71 159/318
	Echelon Line Abreast Phases: 2		36/71 159/318
#	Formation	Supported Battle Node	AD/AP AS/AS+

E-1 Hard R

#	Empty Node
R	敵影を見ず。 No enemy spotted.
#	Empty Node

E-1 Hard S: 深海任務部隊 前衛指揮潜水艦 (PoiDB)

#	Formation	Boss Battle Node	AD/AP AS/AS+
S	Line Ahead Phases: 2		86/171 383/765
	Line Ahead Phases: 2		71/142 318/636
	Line Ahead Phases: 2 (Final)		89/177 396/792
#	Formation	Boss Battle Node	AD/AP AS/AS+

Type	Ships
AS

Type	Ships
DD
AS
AO

Type	Ships
DE
DD
CL
AO

E-1 Medium AB

#	Formation	Air Raids	AD/AP AS/AS+
AB	Line Ahead		49/97 218/435
	Line Ahead		54/108 242/483
	Line Ahead		92/183 410/819
#	Formation	Air Raids	AD/AP AS/AS+

E-1 Medium A

#	Selection Node
A	艦隊の針路を選択できます。提督、どちらの針路をとられますか？ You can decide the fleet's course. Admiral, which heading should we take?
#	Selection Node

E-1 Medium B: 深海潜水艦隊 侵入哨戒 I群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
B	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Medium C

#	Selection Node
C	艦隊の針路を選択できます。提督、どちらの針路をとられますか？ You can decide the fleet's course. Admiral, which heading should we take?
#	Selection Node

E-1 Medium C1: 深海空母機動部隊 艦載機群 (PoiDB)

#	Formation	Air Defense Node	AD/AP AS/AS+
C1	Diamond Phases: 1		45/90 201/402
	Diamond Phases: 1, 2		85/169 378/756
	Diamond Phases: 1, 2		51/101 225/450
#	Formation	Air Defense Node	AD/AP AS/AS+

E-1 Medium C2: 深海潜水艦隊 第二哨戒線 A群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
C2	Echelon Line Abreast Phases: 1		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Medium C3: 深海任務部隊 前衛ピケット線 A群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
C3	Line Ahead Double Line Phases: 1, 2		0/0 0/0
	Line Ahead Phases: 1, 2		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Medium D

#	Empty Node
D	敵影を見ず。 No enemy spotted.
#	Empty Node

E-1 Medium E

#	Empty Node
E	気のせいだった。 Must be my imagination.
#	Empty Node

E-1 Medium F: 深海潜水艦隊 侵入哨戒 II群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
F	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Medium G: 深海空母機動部隊 艦載機群 (PoiDB)

#	Formation	Air Defense Node	AD/AP AS/AS+
G	Diamond Phases: 1		45/90 201/402
	Diamond Phases: 1		85/169 378/756
	Diamond Phases: 1		51/101 225/450
#	Formation	Air Defense Node	AD/AP AS/AS+

E-1 Medium G1: 深海任務部隊 前衛偵察機動部隊 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
G1	Diamond Phases: 1		43/85 189/378
	Diamond Phases: 1		85/169 378/756
	Diamond Phases: 1		43/85 189/378
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Medium G2: 深海潜水艦隊 第二哨戒線 B群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
G2	Echelon Line Abreast Phases: 1		0/0 0/0
	Echelon Line Abreast Phases: 1		0/0 0/0
	Echelon Line Abreast Phases: 1		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Medium H

#	Selection Node
H	艦隊の針路を選択できます。提督、どちらの針路をとられますか？ You can decide the fleet's course. Admiral, which heading should we take?
#	Selection Node

E-1 Medium H1: 深海空母機動部隊 艦載機群 (PoiDB)

#	Formation	Air Defense Node	AD/AP AS/AS+
H1	Diamond Phases: 1		45/90 201/402
	Diamond Phases: 1		51/101 225/450
	Diamond Phases: 1		85/169 378/756
#	Formation	Air Defense Node	AD/AP AS/AS+

E-1 Medium H2: 深海潜水艦隊・深海航空支援 (PoiDB)

#	Formation	Supported Battle Node	AD/AP AS/AS+
H2	Echelon Line Abreast Phases: 1, 2		3/6 12/24
	Echelon Line Abreast Phases: 1, 2		43/85 189/378
	Echelon Line Abreast Phases: 1, 2		43/85 189/378
#	Formation	Supported Battle Node	AD/AP AS/AS+

E-1 Medium I

#	Empty Node
I	敵影を見ず。 No enemy spotted.
#	Empty Node

E-1 Medium J: 深海潜水艦隊 第二哨戒線 C群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
J	Echelon Line Abreast Phases: 1		0/0 0/0
	Echelon Line Abreast Phases: 1		0/0 0/0
	Echelon Line Abreast Phases: 1		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Medium K: 深海任務部隊 機動部隊随伴護衛 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
K	Line Ahead Double Line Phases: 1, 2		0/0 0/0
	Line Ahead Phases: 1		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Medium L: 深海潜水艦隊 第二哨戒線 D群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
L	Echelon Line Abreast Phases: 1		0/0 0/0
	Line Abreast		0/0 0/0
	Echelon Line Abreast Phases: 1		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Medium M: 深海任務部隊 前衛空襲機動部隊 (PoiDB)

#	Formation	Boss Battle Node	AD/AP AS/AS+
M	Line Ahead Diamond Phases: 1, 2		51/101 225/450
	Line Ahead Phases: 1 (Final)		85/169 378/756
#	Formation	Boss Battle Node	AD/AP AS/AS+

E-1 Medium N

#	Empty Node
N	敵影を見ず。 No enemy spotted.
#	Empty Node

E-1 Medium O

#	Empty Node
O	気のせいだった。 Must be my imagination.
#	Empty Node

E-1 Medium P: 深海潜水艦隊・深海航空支援 (PoiDB)

#	Formation	Supported Battle Node	AD/AP AS/AS+
P	Echelon Line Abreast Phases: 2		3/6 12/24
	Echelon Line Abreast Phases: 2		43/85 189/378
	Echelon Line Abreast Phases: 2		43/85 189/378
#	Formation	Supported Battle Node	AD/AP AS/AS+

E-1 Medium Q: 深海潜水艦隊・深海航空支援 (PoiDB)

#	Formation	Supported Battle Node	AD/AP AS/AS+
Q	Echelon Line Abreast Phases: 2		3/6 12/24
	Echelon Line Abreast Phases: 2		43/85 189/378
	Echelon Line Abreast Phases: 2		36/71 159/318
#	Formation	Supported Battle Node	AD/AP AS/AS+

E-1 Medium R

#	Empty Node
R	敵影を見ず。 No enemy spotted.
#	Empty Node

E-1 Medium S: 深海任務部隊 前衛指揮潜水艦 (PoiDB)

#	Formation	Boss Battle Node	AD/AP AS/AS+
S	Line Ahead Phases: 2		46/91 204/408
	Line Ahead Phases: 2		54/107 240/480
	Line Ahead Phases: 2 (Final)		91/182 408/816
#	Formation	Boss Battle Node	AD/AP AS/AS+

Type	Ships
AS

Type	Ships
DD
AS
AO

Type	Ships
DE
DD
CL
AO

E-1 Easy AB

#	Formation	Air Raids	AD/AP AS/AS+
AB	Line Ahead		46/92 206/411
	Line Ahead		49/97 218/435
	Line Ahead		54/108 242/483
#	Formation	Air Raids	AD/AP AS/AS+

E-1 Easy A

#	Selection Node
A	艦隊の針路を選択できます。提督、どちらの針路をとられますか？ You can decide the fleet's course. Admiral, which heading should we take?
#	Selection Node

E-1 Easy B: 深海潜水艦隊 侵入哨戒 I群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
B	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Easy C

#	Selection Node
C	艦隊の針路を選択できます。提督、どちらの針路をとられますか？ You can decide the fleet's course. Admiral, which heading should we take?
#	Selection Node

E-1 Easy C1: 深海空母機動部隊 艦載機群 (PoiDB)

#	Formation	Air Defense Node	AD/AP AS/AS+
C1	Diamond Phases: 1, 2		43/85 189/378
	Diamond Phases: 1		51/101 225/450
	Diamond Phases: 1, 2		45/90 201/402
#	Formation	Air Defense Node	AD/AP AS/AS+

E-1 Easy C2: 深海潜水艦隊 第二哨戒線 A群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
C2	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Easy C3: 深海任務部隊 前衛ピケット線 A群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
C3	Line Ahead Double Line Phases: 1, 2		0/0 0/0
	Line Ahead Phases: 1, 2		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Easy D

#	Empty Node
D	敵影を見ず。 No enemy spotted.
#	Empty Node

E-1 Easy E

#	Empty Node
E	気のせいだった。 Must be my imagination.
#	Empty Node

E-1 Easy F: 深海潜水艦隊 侵入哨戒 II群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
F	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Easy G: 深海空母機動部隊 艦載機群 (PoiDB)

#	Formation	Air Defense Node	AD/AP AS/AS+
G	Diamond Phases: 1, 2		43/85 189/378
	Diamond Phases: 1		51/101 225/450
	Diamond Phases: 1, 2		45/90 201/402
#	Formation	Air Defense Node	AD/AP AS/AS+

E-1 Easy G1: 深海任務部隊 前衛偵察機動部隊 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
G1	Diamond Phases: 1		43/85 189/378
	Diamond Phases: 1		51/101 225/450
	Diamond Phases: 1		43/85 189/378
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Easy G2: 深海潜水艦隊 第二哨戒線 B群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
G2	Echelon Line Abreast Phases: 1		0/0 0/0
	Echelon Line Abreast Phases: 1		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Easy H

#	Selection Node
H	艦隊の針路を選択できます。提督、どちらの針路をとられますか？ You can decide the fleet's course. Admiral, which heading should we take?
#	Selection Node

E-1 Easy H1: 深海空母機動部隊 艦載機群 (PoiDB)

#	Formation	Air Defense Node	AD/AP AS/AS+
H1	Diamond Phases: 1, 2		43/85 189/378
	Diamond Phases: 1, 2		45/90 201/402
	Diamond Phases: 1		51/101 225/450
#	Formation	Air Defense Node	AD/AP AS/AS+

E-1 Easy H2: 深海潜水艦隊・深海航空支援 (PoiDB)

#	Formation	Supported Battle Node	AD/AP AS/AS+
H2	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		3/6 12/24
	Echelon Line Abreast Phases: 1, 2		43/85 189/378
#	Formation	Supported Battle Node	AD/AP AS/AS+

E-1 Easy I

#	Empty Node
I	敵影を見ず。 No enemy spotted.
#	Empty Node

E-1 Easy J: 深海潜水艦隊 第二哨戒線 C群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
J	Echelon Line Abreast Phases: 1		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Easy K: 深海任務部隊 機動部隊随伴護衛 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
K	Line Ahead Phases: 1		0/0 0/0
	Line Ahead Double Line Phases: 1, 2		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Easy L: 深海潜水艦隊 第二哨戒線 D群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
L	Echelon Line Abreast Phases: 1		0/0 0/0
	Echelon Line Abreast Phases: 1		0/0 0/0
	Echelon Line Abreast Phases: 1		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Easy M: 深海任務部隊 前衛空襲機動部隊 (PoiDB)

#	Formation	Boss Battle Node	AD/AP AS/AS+
M	Line Ahead Diamond Phases: 1, 2		45/90 201/402
	Line Ahead Phases: 1		51/101 225/450
	Line Ahead Phases: 1 (Final)		51/101 225/450
#	Formation	Boss Battle Node	AD/AP AS/AS+

E-1 Easy N

#	Empty Node
N	敵影を見ず。 No enemy spotted.
#	Empty Node

E-1 Easy O

#	Empty Node
O	気のせいだった。 Must be my imagination.
#	Empty Node

E-1 Easy P: 深海潜水艦隊・深海航空支援 (PoiDB)

#	Formation	Supported Battle Node	AD/AP AS/AS+
P	Echelon Line Abreast Phases: 2		0/0 0/0
	Echelon Line Abreast Phases: 2		3/6 12/24
	Echelon Line Abreast Phases: 2		43/85 189/378
#	Formation	Supported Battle Node	AD/AP AS/AS+

E-1 Easy Q: 深海潜水艦隊・深海航空支援 (PoiDB)

#	Formation	Supported Battle Node	AD/AP AS/AS+
Q	Echelon Line Abreast Phases: 2		0/0 0/0
	Echelon Line Abreast Phases: 2		3/6 12/24
	Echelon Line Abreast Phases: 2		43/85 189/378
#	Formation	Supported Battle Node	AD/AP AS/AS+

E-1 Easy R

#	Empty Node
R	敵影を見ず。 No enemy spotted.
#	Empty Node

E-1 Easy S: 深海任務部隊 前衛指揮潜水艦 (PoiDB)

#	Formation	Boss Battle Node	AD/AP AS/AS+
S	Line Ahead Phases: 2		45/90 201/402
	Line Ahead Phases: 2		49/97 216/432
	Line Ahead Phases: 2 (Final)		54/107 240/480
#	Formation	Boss Battle Node	AD/AP AS/AS+

Type	Ships
AS

Type	Ships
DD
AS
AO

Type	Ships
DE
DD
CL
AO

E-1 Casual AB

#	Formation	Air Raids	AD/AP AS/AS+
AB	Line Ahead		9/17 38/75
	Line Ahead		46/92 206/411
	Line Ahead		49/97 218/435
#	Formation	Air Raids	AD/AP AS/AS+

E-1 Casual A

#	Selection Node
A	艦隊の針路を選択できます。提督、どちらの針路をとられますか？ You can decide the fleet's course. Admiral, which heading should we take?
#	Selection Node

E-1 Casual B: 深海潜水艦隊 侵入哨戒 I群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
B	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Casual C

#	Selection Node
C	艦隊の針路を選択できます。提督、どちらの針路をとられますか？ You can decide the fleet's course. Admiral, which heading should we take?
#	Selection Node

E-1 Casual C1: 深海空母機動部隊 艦載機群 (PoiDB)

#	Formation	Air Defense Node	AD/AP AS/AS+
C1	Diamond Phases: 1, 2		9/17 36/72
	Diamond Phases: 1, 2		43/85 189/378
	Diamond Phases: 1		45/90 201/402
#	Formation	Air Defense Node	AD/AP AS/AS+

E-1 Casual C2: 深海潜水艦隊 第二哨戒線 A群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
C2	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Casual C3: 深海任務部隊 前衛ピケット線 A群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
C3	Line Ahead Double Line Phases: 1, 2		0/0 0/0
	Line Ahead Phases: 1, 2		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Casual D

#	Empty Node
D	敵影を見ず。 No enemy spotted.
#	Empty Node

E-1 Casual E

#	Empty Node
E	気のせいだった。 Must be my imagination.
#	Empty Node

E-1 Casual F: 深海潜水艦隊 侵入哨戒 II群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
F	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Casual G: 深海空母機動部隊 艦載機群 (PoiDB)

#	Formation	Air Defense Node	AD/AP AS/AS+
G	Diamond Phases: 1		9/17 36/72
	Diamond Phases: 1		43/85 189/378
	Diamond Phases: 1		45/90 201/402
#	Formation	Air Defense Node	AD/AP AS/AS+

E-1 Casual G1: 深海任務部隊 前衛偵察機動部隊 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
G1	Diamond Phases: 1		43/85 189/378
	Diamond Phases: 1		43/85 189/378
	Diamond Phases: 1		45/90 201/402
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Casual G2: 深海潜水艦隊 第二哨戒線 B群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
G2	Echelon Line Abreast Phases: 1		0/0 0/0
	Echelon Line Abreast Phases: 1		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Casual H

#	Selection Node
H	艦隊の針路を選択できます。提督、どちらの針路をとられますか？ You can decide the fleet's course. Admiral, which heading should we take?
#	Selection Node

E-1 Casual H1: 深海空母機動部隊 艦載機群 (PoiDB)

#	Formation	Air Defense Node	AD/AP AS/AS+
H1	Diamond Phases: 1		3/6 12/24
	Diamond Phases: 1		9/17 36/72
	Diamond Phases: 1		43/85 189/378
#	Formation	Air Defense Node	AD/AP AS/AS+

E-1 Casual H2: 深海潜水艦隊・深海航空支援 (PoiDB)

#	Formation	Supported Battle Node	AD/AP AS/AS+
H2	Echelon Line Abreast Phases: 1, 2		0/0 0/0
	Echelon Line Abreast Phases: 1, 2		3/6 12/24
#	Formation	Supported Battle Node	AD/AP AS/AS+

E-1 Casual I

#	Empty Node
I	敵影を見ず。 No enemy spotted.
#	Empty Node

E-1 Casual J: 深海潜水艦隊 第二哨戒線 C群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
J	Echelon Line Abreast Phases: 1		0/0 0/0
	Echelon Line Abreast Phases: 1		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Casual K: 深海任務部隊 機動部隊随伴護衛 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
K	Line Ahead Double Line Phases: 1, 2		0/0 0/0
	Line Ahead Phases: 1		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Casual L: 深海潜水艦隊 第二哨戒線 D群 (PoiDB)

#	Formation	Normal Battle Node	AD/AP AS/AS+
L	Echelon Line Abreast Phases: 1		0/0 0/0
	Echelon Line Abreast Phases: 1		0/0 0/0
#	Formation	Normal Battle Node	AD/AP AS/AS+

E-1 Casual M: 深海任務部隊 前衛空襲機動部隊 (PoiDB)

#	Formation	Boss Battle Node	AD/AP AS/AS+
M	Line Ahead Diamond Phases: 1, 2		9/17 36/72
	Line Ahead Phases: 1 (Final)		43/85 189/378
#	Formation	Boss Battle Node	AD/AP AS/AS+

E-1 Casual N

#	Empty Node
N	敵影を見ず。 No enemy spotted.
#	Empty Node

E-1 Casual O

#	Empty Node
O	気のせいだった。 Must be my imagination.
#	Empty Node

E-1 Casual P: 深海潜水艦隊・深海航空支援 (PoiDB)

#	Formation	Supported Battle Node	AD/AP AS/AS+
P	Echelon Line Abreast Phases: 2		0/0 0/0
	Echelon Line Abreast Phases: 2		3/6 12/24
#	Formation	Supported Battle Node	AD/AP AS/AS+

E-1 Casual Q: 深海潜水艦隊・深海航空支援 (PoiDB)

#	Formation	Supported Battle Node	AD/AP AS/AS+
Q	Echelon Line Abreast Phases: 2		0/0 0/0
	Echelon Line Abreast Phases: 2		3/6 12/24
#	Formation	Supported Battle Node	AD/AP AS/AS+

E-1 Casual R

#	Empty Node
R	敵影を見ず。 No enemy spotted.
#	Empty Node

E-1 Casual S: 深海任務部隊 前衛指揮潜水艦 (PoiDB)

#	Formation	Boss Battle Node	AD/AP AS/AS+
S	Line Ahead Phases: 2		9/17 36/72
	Line Ahead Phases: 2		43/85 189/378
	Line Ahead Phases: 2 (Final)		45/90 201/402
#	Formation	Boss Battle Node	AD/AP AS/AS+

Ship Drops

Ship drops
Type	Ship?	K	M	S
DE	Kaiboukan No.4			Casual+
DD	Asakaze		Easy+	Casual+
DD	Harukaze		Easy+	Casual+
DD	Matsukaze		Casual+	Casual+
DD	Hatakaze		Casual+	Casual+
DD	Usugumo			Casual+
DD	Uranami			Casual+
CL	Noshiro			Casual+
AS	Taigei	Casual+	Casual+
AO	Yamashio Maru		Casual+	Casual+
AO	Souya		Casual+	Casual+
CL	Kitakami	Casual+	Casual+	Casual+
CL	Ooi	Casual+	Casual+
CL	Nagara	Casual+	Casual+	Casual+
CL	Sendai		Easy+	Casual+
CA	Kinugasa			Casual+
CA	Myoukou	Casual+	Casual+	Casual+
CA	Takao	Casual+	Casual+	Casual+
CA	Atago	Casual+	Casual+
CA	Mogami	Casual+	Casual+
CA	Suzuya		Casual+	Casual+
CA	Kumano			Casual+
CA	Tone			Casual+
CA	Chikuma			Casual+
CVL	Ryuujou			Casual+
CVL	Shouhou	Hard+	Casual+	Casual+
CVL	Zuihou			Casual+
FBB	Kongou			Casual+
FBB	Hiei			Casual+
FBB	Haruna			Casual+
FBB	Kirishima			Casual+
BB	Fusou	Hard+	Casual+	Casual+
BB	Yamashiro	Easy+	Casual+	Casual+
BB	Nagato	Casual+	Casual+	Casual+
BB	Mutsu			Casual+
CV	Hiryuu			Casual+
CV	Shoukaku			Casual+

Time remaining until Event ends [11]: 1 May 2023 11:00:00 +0900 The Early Spring 2023 Event has ended!
KC anniversary maintenance has started, time remaining until maintenance ends [12]: (~4h event pause) 23 April 2023 20:30:00 +0900 The maintenance has ended. See 2023-04-23 patch notes.
Early Spring 2023 Event Hub Overview Introduction & Overview Main Operation Maps Extra Operation Maps E-1 | E-2 | E-3 E-4 | E-5 | E-6