Ooi

Info

大井 (おおい)		Ooi
19
Kuma Class Light Cruiser

HP	25→29	FP	14→49
ARM	11→29	TORP	24→89
EVA	37→77	AA	13→59
PLA	0	ASW	19→59
SPD	Fast	LOS	8→39
RGE	Medium	LUK	17→49

Aircraft	Equipment
0	14cm Single Gun Mount
0	61cm Quadruple Torpedo Mount
	-Locked-
	-Locked-

Modernization	0 1 0 1
Build Time	1:00 (Normal)	Remodel Req
Consumption	25 25	Dismantle	2 2 9 0
Illustrator	Shibafu	Seiyuu	Ootsubo Yuka

大井改 (おおいかい)		Ooi Kai
97
Kuma Class Torpedo Cruiser

HP	32→37	FP	8→39
ARM	12→39	TORP	80→99
EVA	37→77	AA	13→39
PLA	0	ASW	25→59
SPD	Fast	LOS	8→39
RGE	Medium	LUK	10→49

Aircraft	Equipment
0	61cm Quadruple (Oxygen) Torpedo Mount
0	61cm Quadruple (Oxygen) Torpedo Mount
	-Locked-
	-Locked-

Modernization	0 4 0 1
Remodel Level	10	Remodel Req	400 100
Consumption	25 50	Dismantle	2 6 9 0
Illustrator	Shibafu	Seiyuu	Ootsubo Yuka

大井改二 (おおいかいに)		Ooi Kai Ni
114
Kuma Class Torpedo Cruiser

HP	43→49	FP	17→63
ARM	23→63	TORP	90→139
EVA	43→83	AA	15→49
PLA	0	ASW	27→79
SPD	Fast	LOS	9→43
RGE	Medium	LUK	13→49

Aircraft	Equipment
0	12.7cm Twin High-angle Gun Mount
0	61cm Quintuple (Oxygen) Torpedo Mount
0	Type 21 Air Radar
	-Locked-

Modernization	1 5 0 1
Remodel Level	50	Remodel Req	770 400
Consumption	25 75	Dismantle	2 9 9 0
Illustrator	Shibafu	Seiyuu	Ootsubo Yuka

Gameplay Notes

Special Abilities

Able to perform opening torpedoes at Kai when equipped with a midget submarine.

Overview

Kai

High torpedo.
Low firepower, ASW, HP and armour.

Kai Ni

Very high torpedo.
Average firepower, ASW, HP and armour.

Fit Bonuses

[edit]Ooi Kai Ni Equipment Bonuses
Equipment	Extra Requirement								Note
12.7cm Single High-angle Gun Mount Kai 2		+2		+2
12.7cm Single High-angle Gun Mount Kai 2	+ Surface Radar	+2						+3	One-time
12.7cm Twin High-angle Gun Mount Kai 2		+3		+2
12.7cm Twin High-angle Gun Mount Kai 2	+ Surface Radar	+3						+3	One-time
Bofors 15.2cm Twin Gun Mount Model 1930		+1		+1
5inch Twin Dual-purpose Gun Mount (Concentrated Deployment) OR GFCS Mk.37 + 5inch Twin Dual-purpose Gun Mount (Concentrated Deployment)		-3		-2				-6
Type D Kouhyouteki Kai (Kouryuu Kai)			+1					-2
Elite Torpedo Squadron Command Facility	(1st equipped)	+5	+4					+4	One-time
Skilled Lookouts		+1	+2			+3		+2
Torpedo Squadron Skilled Lookouts						+3		+2
	(1st equipped) (★0-3)	+3	+3						One-time
	(1st equipped) (★4-7)	+4	+3						One-time
	(1st equipped) (★8-MAX)	+4	+4						One-time
Ship-Type Bonuses
12.7cm Twin Gun Mount Model C Kai 3 H	+ Air Radar			+2				+2	One-time
	(2nd equipped) + Air Radar			+2					One-time
	(3rd equipped) + Air Radar			+2					One-time
12cm Single High-angle Gun Mount Model E Kai	(★2-3)			+1
	(★4-5)			+1				+2
	(★6-7)	+1		+1				+2
	(★8-9)	+1		+2				+2
	(★MAX)	+1		+2			+1	+2
	(★2-MAX) + Surface Radar	+1						+1	One-time
	(★2-MAX) + Air Radar			+2				+1	One-time
61cm Quintuple (Oxygen) Torpedo Mount			+1
53cm Bow (Oxygen) Torpedo Mount			-5
Passive Radiolocator (E27) + Type 22 Surface Radar Kai 4 (Calibrated Late Model)	(1st equipped) (★7)						+1		One-time
	(1st equipped) (★8)						+1	+1	One-time
	(1st equipped) (★9)	+1					+1	+1	One-time
	(1st equipped) (★MAX)	+1					+2	+1	One-time
	+ ★3+ 12.7cm Twin Gun Mount Model D Kai 2 OR ★3+ 12.7cm Twin Gun Mount Model D Kai 3	+1					+1		One-time
	+ ★4+ Type 13 Air Radar Kai (Late Model)	+1		+4			+1	+3	One-time
Type 42 Air Radar Kai 2								-7
Type 2 Depth Charge	(★8-9)				+1
Type 2 Depth Charge	(★MAX)				+2
2cm Flakvierling 38	(★4-6)			+1				+1
	(★7-9)	+1		+2				+1
	(★MAX)	+1		+3				+2
	(★4-MAX) + Air Radar			+1					One-time
3.7cm FlaK M42	(★6-7)			+1				+1
	(★8-9)	+1		+1				+1
	(★MAX)	+1		+1			+1	+2
	(★6-MAX) + Air Radar			+2					One-time
25mm Anti-aircraft Autocannon Mount & Machine Guns				+1				+2
Fleet Communication Antenna	(★4)						+1
	(★5)	+1					+1
	(★6)	+1					+1	+1
	(★7)	+1					+2	+1
	(★8)	+2					+2	+1
	(★9)	+2					+2	+2
	(★MAX)	+2					+3	+2

[edit]Ooi Kai Equipment Bonuses
Equipment	Extra Requirement								Note
12.7cm Single High-angle Gun Mount Kai 2		+2		+2
12.7cm Single High-angle Gun Mount Kai 2	+ Surface Radar	+1						+2	One-time
12.7cm Twin High-angle Gun Mount Kai 2		+3		+2
12.7cm Twin High-angle Gun Mount Kai 2	+ Surface Radar	+2						+1	One-time
Bofors 15.2cm Twin Gun Mount Model 1930		+1		+1
5inch Twin Dual-purpose Gun Mount (Concentrated Deployment) OR GFCS Mk.37 + 5inch Twin Dual-purpose Gun Mount (Concentrated Deployment)		-3		-2				-6
Elite Torpedo Squadron Command Facility	(1st equipped)	+5	+4					+4	One-time
Skilled Lookouts		+1	+2			+3		+2
Torpedo Squadron Skilled Lookouts						+3		+2
	(1st equipped) (★0-3)	+3	+3						One-time
	(1st equipped) (★4-7)	+4	+3						One-time
	(1st equipped) (★8-MAX)	+4	+4						One-time
Ship-Type Bonuses
12.7cm Twin Gun Mount Model C Kai 3 H	+ Air Radar			+2				+2	One-time
	(2nd equipped) + Air Radar			+2					One-time
	(3rd equipped) + Air Radar			+2					One-time
12cm Single High-angle Gun Mount Model E Kai	(★2-3)			+1
	(★4-5)			+1				+2
	(★6-7)	+1		+1				+2
	(★8-9)	+1		+2				+2
	(★MAX)	+1		+2			+1	+2
	(★2-MAX) + Surface Radar	+1						+1	One-time
	(★2-MAX) + Air Radar			+2				+1	One-time
61cm Quintuple (Oxygen) Torpedo Mount			+1
53cm Bow (Oxygen) Torpedo Mount			-5
Passive Radiolocator (E27) + Type 22 Surface Radar Kai 4 (Calibrated Late Model)	(1st equipped) (★7)						+1		One-time
	(1st equipped) (★8)						+1	+1	One-time
	(1st equipped) (★9)	+1					+1	+1	One-time
	(1st equipped) (★MAX)	+1					+2	+1	One-time
	+ ★3+ 12.7cm Twin Gun Mount Model D Kai 2 OR ★3+ 12.7cm Twin Gun Mount Model D Kai 3	+1					+1		One-time
	+ ★4+ Type 13 Air Radar Kai (Late Model)	+1		+4			+1	+3	One-time
Type 42 Air Radar Kai 2								-7
Type 2 Depth Charge	(★8-9)				+1
Type 2 Depth Charge	(★MAX)				+2
2cm Flakvierling 38	(★4-6)			+1				+1
	(★7-9)	+1		+2				+1
	(★MAX)	+1		+3				+2
	(★4-MAX) + Air Radar			+1					One-time
3.7cm FlaK M42	(★6-7)			+1				+1
	(★8-9)	+1		+1				+1
	(★MAX)	+1		+1			+1	+2
	(★6-MAX) + Air Radar			+2					One-time
25mm Anti-aircraft Autocannon Mount & Machine Guns				+1				+2
Type D Kouhyouteki Kai (Kouryuu Kai)		-1						-7
Fleet Communication Antenna	(★4)						+1
	(★5)	+1					+1
	(★6)	+1					+1	+1
	(★7)	+1					+2	+1
	(★8)	+2					+2	+1
	(★9)	+2					+2	+2
	(★MAX)	+2					+3	+2

[edit]Ooi Equipment Bonuses
Equipment	Extra Requirement								Note
12.7cm Single High-angle Gun Mount Kai 2		+2		+2
12.7cm Single High-angle Gun Mount Kai 2	+ Surface Radar	+1						+2	One-time
12.7cm Twin High-angle Gun Mount Kai 2		+3		+2
12.7cm Twin High-angle Gun Mount Kai 2	+ Surface Radar	+2						+1	One-time
Bofors 15.2cm Twin Gun Mount Model 1930		+1		+1
5inch Twin Dual-purpose Gun Mount (Concentrated Deployment) OR GFCS Mk.37 + 5inch Twin Dual-purpose Gun Mount (Concentrated Deployment)		-3		-2				-6
S9 Osprey		+1			+1			+1
Elite Torpedo Squadron Command Facility	(1st equipped)	+5	+4					+4	One-time
Skilled Lookouts		+1	+2			+3		+2
Torpedo Squadron Skilled Lookouts						+3		+2
	(1st equipped) (★0-3)	+3	+3						One-time
	(1st equipped) (★4-7)	+4	+3						One-time
	(1st equipped) (★8-MAX)	+4	+4						One-time
Ship-Type Bonuses
12.7cm Twin Gun Mount Model C Kai 3 H	+ Air Radar			+2				+2	One-time
	(2nd equipped) + Air Radar			+2					One-time
	(3rd equipped) + Air Radar			+2					One-time
12cm Single High-angle Gun Mount Model E Kai	(★2-3)			+1
	(★4-5)			+1				+2
	(★6-7)	+1		+1				+2
	(★8-9)	+1		+2				+2
	(★MAX)	+1		+2			+1	+2
	(★2-MAX) + Surface Radar	+1						+1	One-time
	(★2-MAX) + Air Radar			+2				+1	One-time
53cm Bow (Oxygen) Torpedo Mount			-5
Passive Radiolocator (E27) + Type 22 Surface Radar Kai 4 (Calibrated Late Model)	(1st equipped) (★7)						+1		One-time
	(1st equipped) (★8)						+1	+1	One-time
	(1st equipped) (★9)	+1					+1	+1	One-time
	(1st equipped) (★MAX)	+1					+2	+1	One-time
	+ ★3+ 12.7cm Twin Gun Mount Model D Kai 2 OR ★3+ 12.7cm Twin Gun Mount Model D Kai 3	+1					+1		One-time
	+ ★4+ Type 13 Air Radar Kai (Late Model)	+1		+4			+1	+3	One-time
Type 42 Air Radar Kai 2								-7
Type 2 Depth Charge	(★8-9)				+1
Type 2 Depth Charge	(★MAX)				+2
Hedgehog (Initial Model)	(1st equipped)				+1			+1	One-time
2cm Flakvierling 38	(★4-6)			+1				+1
	(★7-9)	+1		+2				+1
	(★MAX)	+1		+3				+2
	(★4-MAX) + Air Radar			+1					One-time
3.7cm FlaK M42	(★6-7)			+1				+1
	(★8-9)	+1		+1				+1
	(★MAX)	+1		+1			+1	+2
	(★6-MAX) + Air Radar			+2					One-time
25mm Anti-aircraft Autocannon Mount & Machine Guns				+1				+2
Fleet Communication Antenna	(★4)						+1
	(★5)	+1					+1
	(★6)	+1					+1	+1
	(★7)	+1					+2	+1
	(★8)	+2					+2	+1
	(★9)	+2					+2	+2
	(★MAX)	+2					+3	+2

Hidden Fit Bonuses

She has accuracy and firepower bonuses when equipped with certain medium guns. Please see Gun Fit Bonuses for mode details.

Analysis

Ooi Kai

Priority: Very High

Her first remodel reclassifies her as a Torpedo Cruiser (CLT), meaning she will not be counted as a light cruiser for combined fleet, map routing, and the like.

In exchange for this, her Torpedo stat goes up and she can now be loaded with midget submarines, allowing her to perform submarine-like preemptive torpedo attacks, meaning she gets to hit the enemy fleet before shelling begins, potentially removing an abyssal ship instantly.

Do note that she can't perform anything but basic attacks in night battle at this stage, since she has only two slots and the midget submarine does not count as a torpedo.

Ooi Kai Ni

Priority: Very High

Remodeled again, Ooi-chi really gets to shine now.

Getting a third slot means she's now a force to be reckoned with in night battle too, and a stellar 139 Torpedo stat makes her opening torpedo much more lethal.

Her base Luck is just 13, meaning that cut-in attacks at night are not an option for her unlike her sister Kitakami, albeit experienced admirals can definitely invest to increase her Luck further.

On top of this, her ASW stat goes up too, meaning that at high levels she can perform both OASW and opening torpedo. Oh, and she comes with a 61cm Quint (Oxygen) Torpedo Mount too.

What's there not to like?

Recommended Roles

Surface combat
Night battle (Second remodel)
ASW (Second remodel)

Voice Lines

Quotes

Event	Japanese/English
Introduction Play	Hello~ I'm the light cruiser, Ooi. I ask that you please take good care of me.
Introduction Play	こんにちはー。軽巡洋艦、大井です。どうぞ、よろしくお願い致しますね。
Introduction Play	I'm the torpedo cruiser, Ooi.By the way... where is Kitakami-san? ^[1]
Introduction Play	重雷装艦、大井です。ところで…北上さんはどこかしら。
Library Play	I'm the 4th ship of the Kuma-class light cruisers, Ooi. I was born in Kobe. During peacetime I was a training ship at the Imperial Japanese Navy Academy you know? Or course, my highlight is the mode change to a torpedo cruiser you know? I'll do my best!
Library Play	球磨型軽巡洋艦の４番艦、大井よ。神戸生まれなの。平時は海軍兵学校練習艦として活躍したのよ？もちろん、真打ちは、重雷装艦へのモデルチェンジよね？頑張るわ！
Library Play	I'm Ooi, now in torpedo cruiser version. I was expecting to use my overwhelming torpedo armanent but I never got the chance.^[2] This time I'll show you my best. Just watch!
Library Play	重雷装艦バージョンの大井です。圧倒的な水雷戦力を期待されたけど、出番がなかなかなかったの。今度は活躍して見せるわ。みていてね！
Secretary 1 Play	An exercise?
Secretary 1 Play	演習ですか？
Secretary 1 Play	Ummm... I'll launch my torpedoes you know?
Secretary 1 Play	あの…魚雷撃ちますよ？
Secretary 1 Play	Ummm... I'll launch my torpedoes you know? That's fine right?
Secretary 1 Play	あの…魚雷撃ちますよ？いいですね？
Secretary 2 Play	I wonder if Kitakami-san is doing well...
Secretary 2 Play	北上さん、大丈夫かな…
Secretary 3 Play	Admiral? What are you doing with your hands? Is this an exercise? Can I shoot you?
Secretary 3 Play	提督？この手はなんですか？何かの演習ですか？撃ってもいいですか？
Secretary 3 Play	Are you interested too, Admiral? Yup, I got lots attached to my legs! ...Hey, you're touching too much. Can I just launch 20 at you, Admiral?
Secretary 3 Play	提督も気になります？そう、足にいっぱい付いたんですよ！…って、触りすぎなので。提督に20発、撃っていいですか？
Secretary Idle Play	I wonder if Kitakami-san is doing well, I'm worried when I'm not there with her. Yup, I'm worried... There's absolutely, definitely something going on! I have to go!
Secretary Idle Play	北上さん大丈夫かな、私がいないと心配だな。うん、心配……きっと、そう、きっと何か起きてる！私、行かなきゃ！
Secretary (Married) Play	Admiral? What about the other girls? Eh, that's not it? Humph, that's fine then...
Secretary (Married) Play	提督？他の子がどうしたって？え、違う？ふーん、ならいいの、なら…
Wedding Play	Kitakami-san! Oh it's just you, Admiral? Ah, no, that's fine. Yes, I love you too, Admiral!
Wedding Play	北上さん！なんだ提督なの？あ、いえ、いいんですけど。はい、提督も愛してます！
Wedding Play	Is it fine to pick me out of the two torpedo cruisers? ...I'll drown you in the sea if you betray me alright...
Wedding Play	たった二人の重雷装艦、私を選んでいいの？…私を裏切ったら海に沈めるけどね…
Player's Score Play	There's a notification for you, Admiral.
Player's Score Play	提督にお知らせが来ています。
Player's Score Play	Looks like there's a notification for you, Admiral.
Player's Score Play	提督にお知らせみたいです。
Player's Score Play	You want to review the intelligence right, Admiral?
Player's Score Play	情報を確認するのですね、提督。
Joining the Fleet Play	Ooi, torpedo squadron, sortieing.
Joining the Fleet Play	大井、水雷戦隊、出撃します。
Joining the Fleet Play	Torpedo cruiser Ooi, sortieing!
Joining the Fleet Play	重雷装艦大井、出撃します！
Equipment 1 Play	Fufu~...I'm a bit happy.
Equipment 1 Play	ふふっ…ちょっと嬉しい。
Equipment 1 Play	The Type 93 Oxygen Torpedoes are... cold and amazing♪
Equipment 1 Play	九三式酸素魚雷って…冷たくて、素敵♪
Equipment 2 Play	Ummm... Please make another ship stronger too.
Equipment 2 Play	あの…他の艦も強くしてあげて。
Equipment 2 Play	It'd be nice if I could use the power of these torpedoes properly.
Equipment 2 Play	この魚雷火力、上手く使って欲しいな。
Equipment 2 Play	Fufufu... I won't let anyone interrupt us like last time... Oh, there's some lint on my shoulder. Yes, I'm fine now.
Equipment 2 Play	ふっふっふ…誰も私たちの前を遮れないわ。…あら、肩に糸屑が。はい、大丈夫です。
Equipment 3^[3] Play	Well, this is fine.
Equipment 3^[3] Play	まあ、いいかな。
Equipment 3^[4] Play	If you say it's fine, Kitakami-san...
Equipment 3^[4] Play	北上さんがいいって言うなら…
Equipment 3^[5] Play	Still not enough I guess?
Equipment 3^[5] Play	まあまあ、かな？
Supply Play	I see, I'm fully loaded with fuel and oxygen torpedoes huh. Fufu, I can continue to fight with this.
Supply Play	そう、燃料と酸素魚雷を満載してね。ふふふ、これでまた、戦えます。
Docking (Minor Damage) Play	Yes, I'm going to rest for a while.
Docking (Minor Damage) Play	はい、少し休んできますね。
Docking (Minor Damage) Play	I was looking forwards to entering the docks with Kitakami-san...
Docking (Minor Damage) Play	入渠も北上さんと一緒だったら楽しのに…
Docking (Major Damage) Play	Tch, what kind of orders are... Ah, no, it's nothing. Ufufufu~
Docking (Major Damage) Play	ちっ、なんて指揮…あっいえ、なんでもありませーん。うふふっ。
Docking (Major Damage) Play	That strategy was terrible... Ah! No, I'm sorry I wasn't good enough.
Docking (Major Damage) Play	作戦が悪いのよ……あっ！いえ、私が至らなくてごめんなさい。
Docking (Major Damage) Play	It's definitely because it was a terrible strategy... Ah... No, I'm sorry I'm never good enough...
Docking (Major Damage) Play	完全に作戦が悪いのよ…あっ…いいえ、私がいつも至らなくて、ごめんなさい…
Construction Play	I'm happy, a new comrade has arrived!
Construction Play	嬉しいっ、新しい仲間が到着しました！
Construction Play	A new comrade has joined the fleet.
Construction Play	新しい仲間が艦隊に加わりました。
Construction Play	Eh? A new ship? ...Tch, yet another girl to get in the way... No, it's nothing.
Construction Play	え？新しい艦？…ちっ、また邪魔な子が…いえ、なんでもないの。
Returning from Sortie Play	The fleet has returned to port. Good work, everyone.
Returning from Sortie Play	艦隊が帰投しました。みんなお疲れ様。
Returning from Sortie Play	The fleet has finished the operation. Good work.
Returning from Sortie Play	艦隊が作戦終了です。おつかれさまね。
Starting a Sortie Play	Ooi, setting off! Don't fall behind, everyone!
Starting a Sortie Play	大井、出ます！みんな、遅れないで！
Starting a Sortie Play	Now, let's go on a sortie to launch oxygen torpedo barrages!
Starting a Sortie Play	さあ、酸素魚雷を撃ちまくりに出撃よ！
Starting a Sortie Play	Now, it's time to bring out the true power of these cold and amazing oxygen torpedoes!
Starting a Sortie Play	さあ、冷たくて素敵な酸素魚雷、本当の力を叩きつけてやるのよ！
Starting a Battle Play	I get fired up... when I hear that it's time for combat.
Starting a Battle Play	私、砲雷撃戦って聞くと…燃えちゃいます。^[6]
Starting a Battle Play	Now, follow me~!
Starting a Battle Play	さあ、いっくわよー！
Attack Play	That's right... it's too late for you...
Attack Play	そうね…もう遅いわよ…
Attack Play	Launching 20 oxygen torpedoes!
Attack Play	酸素魚雷、20発、発射です！
Attack Play	Go become food for the fishes!^[7]
Attack Play	海の藻屑となりなさいな！
Night Battle Attack Play	Go become food for the fishes!
Night Battle Attack Play	海の藻屑となりなさいな！
Night Battle Attack Play	Lanching Type 93 Oxygen Torpedoes!
Night Battle Attack Play	九三式酸素魚雷やっちゃってよ！
Night Battle Play	Who is... the one who hurt Kitakami-san?
Night Battle Play	北上さんを傷つけるの……誰？
MVP Play	Oh? Me? Ufufu~ this feeling is not bad. I'll continue to do my best~!
MVP Play	あら？私？うふふっ、悪い気持ちじゃないわね。また頑張りますっ！
MVP Play	Me? Oh no, how embarrassing♪ Hey, wha, Kitakami-san...? Was Kitakami-san looking at me just now!? Hey!?
MVP Play	私ですかぁ？いやだ、困ってしまいますぅ♪って、あれ、北上さん…？今の、北上さんは見ててくれたの！？ねぇ！？
Minor Damage 1 Play	Whoaaaaa
Minor Damage 1 Play	うぁあぁぁっ
Minor Damage 1 Play	Oh no, this hurts!
Minor Damage 1 Play	やだ、痛いじゃない！
Minor Damage 2 Play	Yeah, that hurt.
Minor Damage 2 Play	うっぅん、痛いったら
Minor Damage 2 Play	Humph, I... I'm angry now!
Minor Damage 2 Play	ふんっ、もう…もう怒ったわ！
Major Damage Play	They got me...? I need to go get repaired.
Major Damage Play	やられちゃった…？修理しなくちゃ。
Major Damage Play	No!? My torpedo launchers are all battered!
Major Damage Play	やだ！？魚雷発射管がボロボロじゃない！
Sunk Play	Did I manage to whittle down the enemy fleet...? I see... that's good then... I can sink now.^[8]
Sunk Play	敵艦隊、かなり削ってやれた…？そう…ならいいわ…沈んであげる。
Sunk Play	It's not bad sinking as a torpedo cruiser...
Sunk Play	重雷装艦として、沈むのも悪くはないか…

↑ The term she uses "重雷装艦", literally translates to 'ship heavily equipped with torpedoes'.
↑ Due to advances in naval aviation and submarine warfare, torpedoes were harder to use because they would get spotted and give targets time to evade.
↑ This line is shared with expedition selection, resource collection, instant repair and development.
↑ This line is shared with expedition selection, resource collection, instant repair and development.
↑ This line is shared with expedition selection, resource collection, instant repair and development.
↑ Returns to this line on Kai Ni.
↑ 海の藻屑 literally means "a watery grave".
↑ The intended role of torpedo cruisers was to soften up the enemy before other surface combatants engaged to finish them off.

Hourlies

Time	Japanese/English
00:00 Play	It just turned exactly 12 o'clock, Admiral. It's late at night huh.
00:00 Play	丁度0時を回ったところです、提督。夜更け、ですね。
01:00 Play	The time is now 0100. Eh? Too formal? I-I see...
01:00 Play	現在時刻、マルヒトマルマル。え？硬い、ですか？そ、そうですか…。
02:00 Play	The time... Ah, No. It's 0200? How was that, Admiral?
02:00 Play	現在時……あ、いえ。マルフタマルマルです？提督、こんな感じならどうですか？
03:00 Play	0300... I swear it's so annoying how you nitpick the way I tell the time... No, it's 0300!
03:00 Play	マルサンマルマル…まったく煩いわね、時報の言い方なんて細かいことを…いえっ、マルサンマルマル、です！
04:00 Play	It's 0400... Admiral? Admiral~? I wonder if he's asleep. ...This is my chance!
04:00 Play	マルヨン、マルマルです…提督？提督ー？寝たのかしら。…これはチャンスだわ！
05:00 Play	0500. I have to go to Kitakami-san's side! That's right, she is always troubled! Kitakami-saaaaaaaaan!!
05:00 Play	マルゴーマルマルっ。北上さんの所に行かなくては！！そうよ、きっと困ってるに決まっているの!北上さぁああああああん！！
06:00 Play	0600! Are you alright, Kitakami-san? Are you safe!? S-so you are fine... Eh? This knife? I-I was making breakfast...
06:00 Play	マルロクマルマル！北上さん、大丈夫っ、無事！？だ、大丈夫のようね…えっ？この包丁？あ、朝ごはんの……
07:00 Play	0700... Right, I probably should go prepare breakfast. Ummm, are you fine with gluten in the miso soup today?^[1]
07:00 Play	マルナナマルマル…そう、朝ごはんの支度をね、してあげようかなぁって。えっと、お味噌汁の具は、今日はお麩でいい？
08:00 Play	0800. Yes, I did my best to make breakfast for Kitakami-san's sake! Please help yourself♪ ...Is it delicious? That's great♪
08:00 Play	マルハチマルマル。はいっ、北上さんのために、腕によりをかけて作った朝ごはん！どうぞ召し上がれ♪…美味しい？よかったぁ♪
09:00 Play	0900. Eh, "get back to your post"? No way...
09:00 Play	マルキュウマルマル。え、持ち場に戻れって？そんなぁ…
10:00 Play	1000. I'm back, Admiral... Where have I been? ...Of course I was at Kitakami-san's place!
10:00 Play	ヒトマルマルマル。提督、ただいま…どこに行っていたかって？…そんなの、北上さんのところに決まってるじゃないのっ!!
11:00 Play	1100. Ummm... Admiral? Why do you have your head in your hands? Do you have a cold!? Ummm, the cold medicine is...
11:00 Play	ヒトヒトマルマル。あの…提督？何でそんなに頭を抱えているの？お風邪ですか！？ええっと、風邪薬はっと…。
12:00 Play	It's 1200. It's now noon. Shall I make lunch? It's fine. I'm good at cooking.
12:00 Play	ヒトフタマルマルです。丁度お昼ですね。私、お昼作りましょうか？大丈夫です。料理は得意なんですよ、私。
13:00 Play	1300. Now, help yourself! Eh? This...? It's obviously omelette rice! Should I write something with ketchup?^[2]
13:00 Play	ヒトサンマルマル。さぁ召し上がれ！え？これ…？もちろんオムライスです！ケチャップで何か書いてあげましょうか？
14:00 Play	It's 1400. What is it, Admiral? Why do you have such a suspicious look. I didn't poison lunch you know? How rude.
14:00 Play	ヒトヨンマルマルです。提督、何ですか？その怪訝な顔は。別に、お昼に毒なんて入っていませんよ？失礼ですね。
15:00 Play	1500. It's almost time for us to seriously excecute operations huh... Now, let's do this properly! Ei!
15:00 Play	ヒトゴーマルマル。そろそろ真面目に作戦を遂行しないといけませんね。…さっ、しっかりやりましょう！ええ！
16:00 Play	1600. Ummm... expeditions and missions, and then the sortie fleet is... What should we do, Admiral?
16:00 Play	ヒトロクマルマル。えっと…遠征と任務、あと、出撃艦隊は、提督、どうしましょうか？
17:00 Play	It's 1700. Oh no, it's almost time for dinner. I need to step out for a while to make dinner.
17:00 Play	ヒトナナマルマルです。あらやだ、もうすぐ夕食の時間ですね。私、ちょっと夕食の仕込み、してきますね。
18:00 Play	The time is now 1700. What's in this pot? It's obviously my special curry made with lots of love! I'm heading out!
18:00 Play	現在時刻、ヒトハチマルマル。この鍋は何かですって？もちろん、愛情たっぷりの、大井特製カレーです！行ってきます！
19:00 Play	1900. Kitakami-san? I just happened to make too much curry! If you don't mind, let's eat it together~!
19:00 Play	ヒトキュウマルマル。北上さーん? たまたまカレーを作りすぎてしまったの！よかったら、一緒に食べましょほぉぉお！
20:00 Play	2000. See, I even set aside some for you, Admiral. Eh? It's delicious...? Your body is getting hotter? Really?
20:00 Play	フタマルマルマル。ほら、提督の分もちゃんとありますから。え？美味しい…？体が熱くなってきた？そうでしょう？
21:00 Play	The time is now 2100. Right, the dishes are all done and the area around the stove is OK. Today was tiring right, Admiral. Whew...
21:00 Play	現在時刻、フタヒトマルマル。さ、洗い物もして、火の周りもオッケー、と。今日も疲れましたね、提督。ふぅ…。
22:00 Play	2200. Tch, that one light cruiser is making a fuss again huh... Can I give her a piece of my mind, Admiral? Ah, I...see?
22:00 Play	フタフタマルマル。チッ、まーた軽巡が一隻騒いでるわね…。提督、私、ちょっと文句言ってきていい？ぁ、そ…そう？
23:00 Play	2300. Thanks for your hard work today, Admiral. I wonder if Kitakami-san is already asleep.
23:00 Play	フタサンマルマル。提督、今日もお疲れ様です。北上さん、もう寝たかな

↑ Gluten is a kind of vegetarian meat substitute.
↑ In certain restaurants, the person who serves you will write or draw whatever you want (within reason) on the omelette rice.

Seasonal

Ship	Japanese/English	Notes
End of Year 2014 Play	Jeez, why is the end of the year always so busy… Ah, I’ll do my best with spring cleaning!
End of Year 2014 Play	もぉ、なんだって年末年始はこう忙しいのかしら…あ、大掃除、頑張ります！
New Year 2015 Play	Kitakami!! Happy New Year! This year too! …Ah, Admiral? Please take care of me this year too, Admiral. Yes.
New Year 2015 Play	北上さん！！あけましておめでとうございます！！っ今年も！・・・あっ提督？提督も、今年もどうぞよろしくおねがい致します。はい。
Valentine’s Day 2015 Play	V-valentine’s… Now is the time! Ufufu, fufu… huh?! M-my nose is bleeding? Whoawhoa…
Valentine’s Day 2015 Play	バ、バレンタイン…今年こそは決戦ね！　うふふ、ふふ…うっ？！　は、鼻血が？　あははは…
2nd Anniversary Play	Today is an important day. I must spend it with Kitakami! Kitakamiiii!
2nd Anniversary Play	今日は大切な日。ここはやっぱり、北上さんと過ごさないと！北上さあーんッ！
Early Summer 2015 Play	It’s almost summer♪ I need to buy a swimsuit that matches Kitakami’s♪ Fufufufufu♪
Early Summer 2015 Play	もうすぐ夏ねぇ♪北上さんとお揃いの水着、買わなくちゃ♪ふふ、ふふふ♪
5th Anniversary Play	It’s finally the fleet’s 5th Anniversary! I’ll definitely need to be by Kitakami’s side! Kitakamiiiiii!
5th Anniversary Play	艦隊はついに五周年！ここはやっぱり、北上さんと過ごさないと！北上さぁーん！
Rainy Season 2018 Play	Are we making teruteru bouzu? Please leave it to me. Look, we already have all the tools and materials we need. So, this is for me…
Rainy Season 2018 Play	てるてる坊主作りですか？任せてください。ほら、材料と道具一式もあるんです。で、これは私と…
Summer 2018 Play	It's almost summer. I need to go buy matching swimsuits for Kitakami and I! Ehe, ehehe.
Summer 2018 Play	もうすぐ夏ね。北上さんとお揃いの水着、買わなっちゃ！えへぇ、えへへぇ。
Saury 2018 Play	Saury. Filleting saury is no big deal at all for me. Just bring it all on! Yes, I'll do it!
Saury 2018 Play	秋刀魚。この大井、秋刀魚を三枚におろすくらい、造作も無いこと。どんどん持ってきなさい！えぇ、やってやるわ！
Christmas 2018 Play	Kitakami, this is delicious. Here, say "aah"... Eh, why? Why did you say that? I don't want to hear iiiiit!
Christmas 2018 Play	北上さん、これ、美味しいです。はい、あーんして…えぇ、どうして？どうしてそんなこと！？言うなぁー！
Coming of Spring 2019 Play	It's almost spring. With Kitakami, I'll... Ufu... Ufufufufu... Ah, Admiral, good work.
Coming of Spring 2019 Play	そろそろ春ね。私と、北上さんも…うふぅ…うふふふふぅ…あぁ、提督、お疲れさまです。
6th Anniversary Play	Admiral, what is it? Eh, the 6th Anniversary!? How can this be!? I definitely need to be spending it with Kitakami... Kiiiitaaaaakaaaamiiiii!	Secretary 2
6th Anniversary Play	提督、何？えぇ、六周年！？なんてこと！？ここはやっぱり、北上さんと過ごさないと…北上さーん！	Secretary 2
Rainy Season 2019	Kitakami-san! Look, look! This looks tasty too! I'll buy two for us! Eh? And one for the Admiral? Tch... If I have to.
Rainy Season 2019	北上さん、見て見て！これも美味しそう！私、二人分買ってきますね！え？提督の分も？チッ…しかたない。
7th Anniversary Play	It's the fleets... Wha! It's the 7th Anniversary!? I forgot! I need to spend this big day with Kitakami... Kitakamiiiii!	Secretary 2
7th Anniversary Play	艦隊は…うえぇ！七周年！？忘れてたわ！この大事な日は、絶対北上さんと過ごさないと…北上さーん！	Secretary 2

Misc Lines

Ship	Japanese/English	Notes
Final Battle 2018 Play	Kitakami, the fleet is looking like… Could this be, that? The final battle… Well, Admiral?	Secretary 1
Final Battle 2018 Play	北上さん、艦隊の様子が…これは、もしかして、あれですか？艦隊決戦ってやつ…提督、どうなの？	Secretary 1
Final Battle 2018 Play	Be careful, Kitakami! This time is a little… Ngh!	Secretary 2
Final Battle 2018 Play	北上さん、気を付けて！今回は少し...ん！	Secretary 2
Final Battle 2018 Play	All the fools who stand before Kitakami and I, should SINK!	Attack
Final Battle 2018 Play	私と北上さんの前を遮る愚か者、沈みなさい！	Attack
Final Battle 2018 Play	Eat my Type 3 Oxygen Love Attack!	Night Battle Attack
Final Battle 2018 Play	九三式酸素ラブアターック！食らえ！	Night Battle Attack
Final Battle 2018 Play	Ngh, bring it you bastards!	Minor Damage 1
Final Battle 2018 Play	ん、やろう、上等じゃない！	Minor Damage 1
Sasebo Base Tour 2018 Play	A trip with Kitakami! Y-yes, I can’t wait! Eh, why are you here, Admiral? Huh, a chaperone? For what? HUH!
Sasebo Base Tour 2018 Play	北上さんと旅行！は、はい、楽しいです！えぇ、提督、あなたはどうしてここに？はぁ、監督？なんの？はぁ！
Spring 2019 Event Play	A-are you ready?	Friend Fleet Line
Spring 2019 Event Play	じゅ、準備はいいですか？	Friend Fleet Line

CG

Regular
Base Base Damaged Kai Kai Damaged Kai Ni Kai Ni Damaged

Seasonal
Rainy Season 2019 Rainy Season 2019 Damaged

Drop Locations

Ship	Rarity	Type	No.	World 1						World 2					World 3					World 7					World 4					World 5					World 6					Remarks
Ship	Rarity	Type	No.	1	2	3	4	5	6	1	2	3	4	5	1	2	3	4	5	1	2	3	4	5	1	2	3	4	5	1	2	3	4	5	1	2	3	4	5	Remarks
Ooi	Very Rare	CL	019									✔️	✔️	✔️			✔️	✔️	✔️	✔️	✔️	✔️	✔️			✔️		✔️		✔️	✔️	✔️			✔️		✔️		✔️	Buildable (no LSC)

Trivia

Ooi was part of the game's official launch when the game was released in April 23rd, 2013.
When KanColle's site was launched on DMM bach in February 28th, 2013, players who per-registered before the game's official release received Ooi as a bonus ship along with thier starting ship when they began playing.
She is named after the Ooi River.
- It literally means Big Well.
Torpedoed by USS Flasher 570nmi (1,060 km; 660 mi) south of Hong Kong in the South China Sea at 13°12′N 114°52′E, 19 July 1944.

Ooi

Contents