Kaiboukan No.4

Info

第四号海防艦 (だいよんごうかいぼうかん)		Kaiboukan No.4
437
Type D Kaiboukan Coastal Defense Ship

HP	8→12	FP	3→15
ARM	4→15	TORP	0
EVA	39→79	AA	5→19
PLA	0	ASW	30→67
SPD	Slow	LOS	2→11
RGE	Short	LUK	18→76

Aircraft	Equipment
0	Type 3 Depth Charge Projector
	-Locked-
	-Locked-
	-Locked-

Modernization	0 0 1 0
Build Time	0:14 (Unbuildable)	Remodel Req
Consumption	10 10	Dismantle	1 1 1 0
Illustrator	Hozuka	Seiyuu	Fujita Saki

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Gameplay Notes

Special Mechanics

Able to perform OASW at 60ASW.
Provides luck, ASW or HP when used for modernization. Please see Modernization for more details.

Overview

Low firepower, HP and armour.
Good ASW.

Fit Bonuses

Visible Fit Bonuses tbd

Analysis

Priority: Low

Destroyer escorts, also known as kaiboukan, are cheap, mass-produced vessels focused on ASW, and that's what they should be used for.

With proper gear, they can perform OASW attacks from level 1 and consume very little fuel and ammo, giving an excellent bang for your bucks when it comes to dealing with subs.

However, they are a poor fit for surface combat, so make sure not to expose them to enemy surface ships too much.

Kaiboukan No.4 is weaker than other DEs due to being capped at 2 Equipment slots and generally lower statline. This makes her unable to make full use of ASW Synergy.

They're also very cheap and easy to sparkle, and can therefore be used in expeditions that do not require a Drum Canister (as they cannot equip those).

Furthermore, they can be used for an unique kind of Modernization that can increase HP, ASW and Luck. Refer to the corresponding page for details on that.

Recommended Roles

limited ASW
Modernization
Expeditions

Not Recommended Roles

Surface combat

Voice Lines

Quotes

Event	Japanese/English
Introduction Play	I'm the 2nd of the Type-D coastal defense ships that were created under the Maru-Sen Plan, Kaiboukan No.4. Yeah, you can call me... "Yotsu" instead. Happy to work with you, Admiral.^[1]
Introduction Play	マル戦計画で生まれた、丁型海防艦、その二番艦、第四号海防艦です。そうねぇ、「よつ」…って呼んでくれていいよ。提督、よろしくね。
Introduction Play	Born in Yokosuka, I'm the 2nd of the Type-D coastal defense ships, Kaiboukan No.4, or Yotsu. I'm feeling great today too! Admiral, let's work hard!
Introduction Play	横須賀生まれの、丁型海防艦、その二番艦の、第四号海防艦、よつ。今日も元気です！提督、頑張ろう！
Library Play	I'm the 2nd of the Type-D coastal defense ships that were created under the Maru-Sen Plan, Kaiboukan No.4. I may be tiny, but I did my very best in Yokosuka's defense, at the Marianas, and at the Ogasawara islands! Enemy submarines stand no chance. In the end, I worked hard at Ise Bay using this life Matsu saved.
Library Play	マル戦計画で生まれた、丁型海防艦、その二番艦、第四号海防艦です。ちっちゃいけれど、ものすごく頑張りました！横須賀の防備や、マリアナや、小笠原。敵の潜水艦だって、負けません。最後は伊勢湾、松にもらった命頑張りました。
Secretary 1 Play	Yeees, did you call?
Secretary 1 Play	は〜い、よつ、呼んだ？
Secretary 2 Play	You have a job for me? You got it!
Secretary 2 Play	よつのお仕事？ヤルヤル！
Secretary 3 Play	Big sis Matsu, good work. Are you feeling a bit stiff? I'm good at giving back rubs. Eh? Admiral, you're feeling stiff too? Alright, then I'll rub your back next.
Secretary 3 Play	松の姉御、お疲れさまです。肩こってないですか？よつ、肩もみ上手なんですよ。えぇ？提督もこってるの？じゃあ、提督は、今度もんであげますね。
Idle Play	Ah, big sis Matsu, I'll go get some youkan and tea. The Admiral's here too? Oh well. Then we'll just split it between us!
Idle Play	はぁ、松の姉御、よつ、羊羹とお茶持ってきますね。提督もいる？あ、そうか。じゃあ、よつのと、半ぶつです！
Secretary Married Play	Ad-mi-ra-l, how are you doing? You good? No? Heh, then I'll give you a back rub! Rub-a-dub-dub! Howssat?
Secretary Married Play	て・い・と・く、ど〜う？元気？そうでもない？ひん、じゃあ、よつが肩もんであげます！もみもみもみぃ〜。ど〜う？
Wedding Play	Admiral, did you call me? If you didn't I'm leaving. Eh, you did? ...Is this for me? Whoaaa!
Wedding Play	提督、よつ、呼んだ？間違いだったら戻るね。えぇ、間違いじゃない？…これ、くれるの？うひゃあぁ！
Looking At Scores Play	You want information? Please wait.
Looking At Scores Play	情報ですね。お待ち下さい。
Joining A Fleet Play	Type-D coastal defense ship, Yotsu, sortieing.
Joining A Fleet Play	丁型海防艦、よつ、出撃します。
Equipment 1 Play	I'll equip this.
Equipment 1 Play	積みますね。
Equipment 2 Play	I see, I see.
Equipment 2 Play	うむ、うむ。
Equipment 3^[2] Play	I managed somehow.
Equipment 3^[2] Play	なんとかなった。
Supply Play	Yees, thank you.
Supply Play	は〜い、ありがとう。
Docking Minor Play	I'm going for a quick repair.
Docking Minor Play	ちょ〜こっと修理です。
Docking Major Play	I need some biiiiig repairs.
Docking Major Play	ものすご〜く修理しないと。
Construction Play	Yees, it's done.
Construction Play	は〜い、できました。
Returning From Sortie Play	We managed to make it back.
Returning From Sortie Play	なんとか戻ってこれました。
Starting A Sortie Play	Yokosuka Naval Base Picket Coastal Defense Ship, Kaiboukan No.4, feeling great!^[3]
Starting A Sortie Play	横須賀鎮守府警備海防艦、第四号海防艦、元気です！
Starting A Sortie Play	The star of the Ise Bay Maritime Squadron Task Force, Yotsu, feeling great!^[4]
Starting A Sortie Play	伊勢湾海上部隊、機動隊、その主力のよつ、元気です！
Battle Start Play	Oh no, it's the enemy! Enemy sighted!
Battle Start Play	大変、敵だ！敵です！
Attack Play	Stay awaaaaay!
Attack Play	こちくんな〜！
Air Battle/Daytime Spotting/Night Battle Attack Play	Let's get them!
Air Battle/Daytime Spotting/Night Battle Attack Play	やつけろ〜！
Night Battle Play	Are we going to run them down? For real?
Night Battle Play	深追いするの？本当に？
MVP Play	Yeees, was I the best? Whoo!
MVP Play	は〜い、よつががんばちゃった？うひゃ！
MVP Play	Yeees, was I the best? I really get a commendation!?
MVP Play	は〜い、よつががんばちゃった？感状！本当！
Minor Damage 1 Play	Whoaa!
Minor Damage 1 Play	わあぁ！
Minor Damage 2 Play	Ow, that hurts!
Minor Damage 2 Play	いたい、いたい！
Major Damage Play	Argggh, that did it. Aaah, I have to get back to port...
Major Damage Play	がははぁ、くらった。うひゃぁ〜、港に戻らないと…
Sunk Play	No way... is this... the end for me... It can't be... Big siiiis...
Sunk Play	うっそ…よつ…ここで終わり…？うそだ…姉御ぉ〜…

↑ The Maru-Sen Plan was a planned expansion of the Imperial Japanese Navy, starting in April 1943.
↑ This line is shared with expedition selection, resource collection, instant repair and development.
↑ This was her first assignment.
↑ This was her final assignment.

Seasonal

Ship	Japanese/English	Notes
Autumn 2020 Play	Woohoo! I managed to get through summer! Now it's time for the Autumn Festival! It's the season for the Naval Base Autumn Festival! I'm really pumped for it!
Autumn 2020 Play	うひゃぁー！よつ、夏を乗り切った！これからは、秋祭り！鎮守府秋祭りの季節！よつ、元気出る出る！

CG

Regular
Base Base Damaged

Drop Locations

Trivia

[1] The Maru-Sen Plan was a planned expansion of the Imperial Japanese Navy, starting in April 1943.

[2] This line is shared with expedition selection, resource collection, instant repair and development.

[3] This was her first assignment.

[4] This was her final assignment.

[1]

[2]

[3]

[4]