I-203

Info

伊203 (い203)		I-203
482
Sentaka Type Submarine

HP	12→16	FP	1→3
ARM	4→16	TORP	20→64
EVA	40→70	AA	0→5
PLA	0	ASW	0
SPD	Slow	LOS	8→38
RGE	Short	LUK	23→80

Aircraft	Equipment
0	-Unequipped-
	-Locked-
	-Locked-
	-Locked-

Modernization	0 2 0 0
Build Time	0:22 (Unbuildable)	Remodel Req
Consumption	15 15	Dismantle	2 1 2 1
Illustrator	Hoshi Akari	Seiyuu	Yamada Yuki

伊203改 (い203かい)		I-203 Kai
487
Sentaka Type Submarine

HP	13→17	FP	1→4
ARM	4→18	TORP	22→69
EVA	44→80	AA	0→5
PLA	0	ASW	0
SPD	Slow	LOS	14→48
RGE	Short	LUK	24→88

Aircraft	Equipment
0	-Unequipped-
0	-Unequipped-
	-Locked-
	-Locked-

Modernization	0 2 0 0
Remodel Level	55	Remodel Req	250 150
Consumption	20 20	Dismantle	2 1 2 1
Illustrator	Hoshi Akari	Seiyuu	Yamada Yuki

Gameplay Notes

Submarines (SS) have high torpedo stats, and are limited to the Opening Torpedo Salvo, the Closing Torpedo Salvo, and Night Battle. They:

Are only vulnerable to ASW only.
Utilize Sub Submarine Torpedoes and Submarine Equipment.
Can inately trigger Opening Torpedo Salvos after reaching level 10.
Have access to special Night Cut-Ins.

Special Mechanics

None

Special Mechanics

Is from Speed Group Slow C.
- Has a +1 fit bonus with New Model High Temperature High Pressure Boiler (one-time).
  - Can achieve Fast+ Speed by combining with a turbine .

Equipability Exceptions

SS	Default equipment compatibility
	✔️ Can Equip	❌ Cannot Equip
		Sp Recon Bomber
	Sub Minisub Small	Sp Sp_Sec Large Small Large Sp
		Medium Large Large
	RE:
	Equipability notes: = ; = ; = ; = Recon ; = Bomber ; Small= ; Medium= ; Sec= ; =

Default SS equipment compatibility

Fit Bonuses

[edit]I-203 Equipment Bonuses
Equipment	Extra Requirement					Note
Late Model Bow Torpedo Mount (4 tubes) OR Skilled Sonar Personnel + Late Model Bow Torpedo Mount (4 tubes)	(1st equipped)		+3		+3	One-time
Skilled Sonar Personnel + Late Model Bow Torpedo Mount (4 tubes)	(★2)		+1
	(★3)		+1		+1
	(★4)		+2		+1
	(★5)		+2	+1	+1
	(★6-7)		+3	+1	+1
	(★8-9)		+4	+1	+1
	(★MAX)		+4	+2	+1
Late Model Radar & Passive Radiolocator + Snorkel Equipment	(★3)				+1
	(★4)			+1	+1
	(★5)		+1	+1	+1
	(★6-7)		+1	+1	+2
	(★8-9)		+2	+1	+2
	(★MAX)		+2	+2	+2
	(1st equipped)		+3		+6	One-time
	(★2-MAX) + ★4+ Skilled Sonar Personnel + Late Model Bow Torpedo Mount (4 tubes)		+7	+5		One-time
New Model High Temperature High Pressure Boiler	(1st equipped)					+1 One-time
Ship-Type Bonuses
Type D Kouhyouteki Kai (Kouryuu Kai)		-1			-7
Late Model 53cm Bow Torpedo Mount (8 tubes)	(1st equipped) (★8-9)		+1			One-time
Late Model 53cm Bow Torpedo Mount (8 tubes)	(1st equipped) (★MAX)		+1	+1		One-time
Special Type 4 Amphibious Tank OR Special Type 4 Amphibious Tank Kai	(★0)	+1	+2		-1
	(★1-2)	+1	+3		-1
	(★3-5)	+1	+3	+1	-1
	(★6-9)	+1	+3	+2	-1
	(★MAX)	+1	+4	+2	-1
Special Type 4 Amphibious Tank Kai	(★0-1)	+1	+1	+1
	(★2-3)	+2	+1	+1
	(★4-7)	+2	+2	+1
	(★8-MAX)	+3	+2	+1
Late Model Submarine Radar & Passive Radiolocator	+ Late Model Bow Torpedo Mount (6 tubes) OR Skilled Sonar Personnel + Late Model Bow Torpedo Mount (6 tubes) OR Late Model 53cm Bow Torpedo Mount (8 tubes)		+3		+2	One-time

Important Information

Helper for the following equipment:
- Improvement: Late Model Bow Torpedo Mount (4 tubes)

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
I-203	Holo	SS	482																																					Unbuildable

Voice Lines

Quotes

Event	Japanese/English
Introduction Play	I think... I'm the fastest under the sea... 3rd ship of the Sentaka type^[1]. I-203. I guess you can call me... Fuumi? Dangerous? Who, me? ...That's not true, right?^[2]
Introduction Play	海ン中だと……私が多分一番速いと思う……。潜高型の三番艦。伊２０３。フーミィ…かな？危険？私が？……そんなでもないよ？
Introduction Play	Admiral, I'm probably the fastest under the sea. I'm the improved Sentaka type, I-203... I'm ready to sortie at any time... Dangerous? Right now it's... Yeah, only to enemies. I've been completely overhauled, so just watch me.
Introduction Play	提督、やっぱり海ン中は、私が多分一番早いね。改潜高型、伊２０３。…出撃準備は万全……危険？今は…うん、敵にとってね。ちゃんと改良されてるから、見てて。
Library Play	I aim to be the fastest underwater. I'm the latest high-speed 1st class submarine, 3rd ship of the I-201-class submarines, I-203. I didn't take part in actual combat but I'm ready to sortie^[3]. Admiral, nice to meet you. I really am fast underwater, so just watch me.
Library Play	水中での圧倒的の機動性を追求した、伊号潜水艦の新型高速潜水艦、伊２０１型潜水艦の三番艦、伊２０３です。実戦には出ませんでしたが、出撃準備は完了しています。提督、よろしく。私、水中で本当に早いから、見てて。
Secretary 1 Play	Understood.
Secretary 1 Play	わかった。
Secretary 1 Play	Yes, understood.
Secretary 1 Play	うん、わかった。
Secretary 2 Play	Dangerous? I am? ...Really?
Secretary 2 Play	危険？私が？…そう？
Secretary 2 Play	Dangerous? ...I've gotten an overhaul. I think I'll be fine.
Secretary 2 Play	危険？…だいぶ改良したよ。多分平気。
Secretary 3 Play	Admiral, what is it? ...No, that's where I store food for long voyages. Like potatoes or onions... Are you interested how I store food? ...Really? Then I'll tell you about them. Like this... or that.
Secretary 3 Play	提督、何？…違う、そこは貯糧品入れるとこ。ジャガイモや玉ねぎに…興味があるの？しまい方に？…そう？じゃ、教えてあげる。こことか…ここ。
Idle Play	When I have the time, I need to check and maintain my batteries... or I won't be able to go fast... Ah, Admiral, you'll give me a hand? ...That's not my batteries. It's my food storage.
Idle Play	時間ある時は、電池の確認と整備を、しないと…早く、走れない……あぁ、提督、手伝ってくれるの？…そこは、電池じゃない。貯糧品入れるとこ。
Secretary Married Play	I... umm... tried making some tea... Admiral, it's not really that good, but... will you have some?
Secretary Married Play	私、あの、お茶、入れて、みた……提督、あんまりうまくないけれど、飲む？
Wedding Play	Admiral, what is it? I'm giving my batteries some maintenance... Huh, is this for me? What a beautiful ring... But, why? Huh?
Wedding Play	提督、何？私、電池の整備が……えぇ、これ、くれるの？綺麗な指輪……でも、なんで？えぇ？
Looking At Scores Play	You need to know a lot, huh.
Looking At Scores Play	色々、知っとかないとね。
Joining A Fleet Play	21st Submarine Squadron, I-203, sortieing.
Joining A Fleet Play	第十一潜水戦隊、伊２０３、出撃。
Equipment 1 Play	Th... thank you.
Equipment 1 Play	あり…ありがとう。
Equipment 1 Play	Th... thank you. Yeah.
Equipment 1 Play	あ…ありがとう。うん。
Equipment 2 Play	I want to get stronger.
Equipment 2 Play	強く、なりたいな。
Equipment 2 Play	I want to be... the strongest under the sea.
Equipment 2 Play	海の中では…誰より強く、なりたいな。
Equipment 3^[4] Play	Up periscope, hurry.
Equipment 3^[4] Play	潜望鏡観測、急げ。
Supply Play	Th... thank you. siigh
Supply Play	あり…ありがとう。ふあぁ。
Docking Minor Play	Getting repaired.
Docking Minor Play	治す。
Docking Major Play	Getting serious repairs.
Docking Major Play	いっぱい、治す。
Construction Play	It's done.
Construction Play	できた。
Returning From Sortie Play	We're back.
Returning From Sortie Play	戻って、これた。
Starting A Sortie Play	6th Fleet, sub I-203, setting off. Steady as she goes.
Starting A Sortie Play	第六艦隊、伊２０３潜、抜錨。ようそろ。
Battle Start Play	Enemy spotted. Close the hatches, open the vents, crash dive.
Battle Start Play	敵、発見。ハッチ閉鎖、ベント開け、急速潜航。
Attack Play	Tube 1, tube 3, fire!
Attack Play	一番、三番、撃て！
Air Battle/Daytime Spotting/Night Battle Attack Play	Ready the torpedoes! Aim, fire!
Air Battle/Daytime Spotting/Night Battle Attack Play	魚雷戦用意！発射、撃て！
Night Battle Play	Ready for night torpedo battle. Open all the valves.
Night Battle Play	夜間魚雷戦用意。注水、全部開け。
MVP Play	I achieved the most? I see. So I did.
MVP Play	私が戦果を？そう。そうなんだ。
Minor Damage 1 Play	Eek!
Minor Damage 1 Play	きゃあ！
Minor Damage 2 Play	Aah! Damage report.
Minor Damage 2 Play	あぁ！被害、知らせ。
Major Damage Play	I've taken damage. Main tank blow. Emergency ascent.
Major Damage Play	我、損害ヲ受ク。メインタンクブロー。緊急浮上。
Sunk Play	Ah, I'm done for... I'm... going to be crushed... Aaah... Good... bye...
Sunk Play	あぁ、だめだ…私…圧潰、するの……あはぁ…さよ、なら…

↑ "Sentaka" is short for "Suichuu Kousoku Sensuikan (Underwater-High-speed Submarine). It refers to the I-201 class. The character for "kou" (高) can also be read as "taka".
↑ Likely referring to the initial design of her batteries which had reliability problems and were hard to maintain. They caused a fire on her sister ship I-202.
↑ Her crew had just finished training and was ready to be deployed when the surrender was signed.
↑ This line is shared with expedition selection, resource collection, instant repair and development.

Hourlies

Time	Japanese/English
00:00 Play	Admiral, I'm in charge today.
00:00 Play	提督、今日は私が担当、だって。
01:00 Play	Admiral, it's 0100.
01:00 Play	提督、マルヒトマルマル。
02:00 Play	Admiral, it's 0200.
02:00 Play	提督、マルフタマルマル。
03:00 Play	Admiral, it's 0300... Are you a bit sleepy?
03:00 Play	提督、マルサンマルマル……少し、眠いの？
04:00 Play	Admiral, it's 0400. It's almost morning.
04:00 Play	提督、マルヨンマルマル。もうすぐ朝。
05:00 Play	Admiral, it's 0500. It's morning. Wake up.
05:00 Play	提督、マルゴーマルマル。朝。起きて。
06:00 Play	Admiral, it's 0600. I'll go rouse the fleet. All hands, assemble. It's morning. It's already morning, everyone.
06:00 Play	提督、マルロクマルマル。総員起こし、かける。総員、起こし。朝です。朝ですよ、皆さん。
07:00 Play	Admiral, it's 0700. We're having rice in miso soup for breakfast^[1]. Perfect for breakfast on the go.
07:00 Play	提督、マルナナマルマル。朝食はこれ、味噌汁のぶっかけ飯。忙しい時は、これ。
08:00 Play	Admiral, it's 0800. Come on, washing up is easy. It's important. Alright, we're done.
08:00 Play	提督、マルハチマルマル。ほら、洗い物も簡単、大事。よし、終わり。
09:00 Play	Admiral, it's 0900. What do you want to do now? Shall we... go for a run around Kure Bay to start?
09:00 Play	提督、マルキュウマルマル。どうする？呉の湾内…とりあえず走る？
10:00 Play	Admiral, it's 1000. Jingei? I don't really know her.
10:00 Play	提督、ヒトマルマルマル。迅鯨？あんまり、知らない。
11:00 Play	Admiral, it's 1100. Chougei? Ah, I have heard of her.
11:00 Play	提督、ヒトヒトマルマル。長鯨？あぁ、少し、知ってる。
12:00 Play	Admiral, it's 1200. Shall we have lunch? It's rice balls.
12:00 Play	提督、ヒトフタマルマル。お昼、食べよう？おにぎり。
13:00 Play	Admiral, it's 1300. Shall we go for a quick post-meal run?
13:00 Play	提督、ヒトサンマルマル。食後の運動、少し、走る？
14:00 Play	Admiral, it's 1400. There's no one that can match me underwater. I'm the fastest there is. Ah, I'm not talking about descent rate.
14:00 Play	提督、ヒトヨンマルマル。水の中ならね、誰も、私の前は走れない。水中最速。あぁ、下りじゃ、ないよ。
15:00 Play	Admiral, it's 1500. Shimakaze? I've heard of her, but... I don't really know much about her.
15:00 Play	提督、ヒトゴーマルマル。島風？聞いたことあるけど…あんまり、知らない。
16:00 Play	Admiral, it's 1600. All that running kinda tired me out.
16:00 Play	提督、ヒトロクマルマル。走ったら、少し、疲れた。
17:00 Play	Admiral, just look at that sunset. Ah, it's 1700.
17:00 Play	提督、夕日、見て、ほら。あぁ、えっと、ヒトナナマルマル。
18:00 Play	Admiral, it's 1800. What do you want for dinner?
18:00 Play	提督、ヒトハチマルマル。夜ご飯、どうしよう？
19:00 Play	Admiral, it's 1900. Ah, big sis, this is... Curry? ...Umm, today's not Satur... Can I? Thanks for the meal.
19:00 Play	提督、ヒトキュウマルマル。あぁ、姉ちん、これは…カレー？…えっと、土曜…あっ、いいの？いただきます。
20:00 Play	Admiral, it's 2000. The Saturday set meal big sis brought us was delicious. Curry always hits the spot.
20:00 Play	提督、フタマルマルマル。姉ちんの差し入れの土曜定食、美味しかった。カレーは、いつでも美味しい。
21:00 Play	Admiral, it's 2100. I'm a bit... worried about my batteries. Just a little.
21:00 Play	提督、フタヒトマルマル。電池が…少し電池が、気になる。少し。
22:00 Play	Admiral, it's 2200. I'm going to go out on another short run. It's night but... I like running.
22:00 Play	提督、フタフタマルマル。私また少し、走ってくる。夜だけど、走るの…好き。
23:00 Play	Admiral, it's 2300. Thanks... thanks for your hard work today.
23:00 Play	提督、フタサンマルマル。今日は…今日はお疲れ様。

↑ Bukkake meshi (ぶっかけ飯) is soup poured over rice.

Seasonal

Ship	Japanese/English	Notes
Rainy Season 2021 Play	Rain... won't bother me once I'm underwater. nod
Rainy Season 2021 Play	雨……水中に潜ってしまえば、関係ない。うん。
Summer 2021 Play	Yona, is that summer equipment... allowed?
Summer 2021 Play	ヨナ先輩、それは、夏季兵装？あり、なの？
Autumn 2021 Play	What's that? Something smells very good. An autumn festival? Wow.
Autumn 2021 Play	何？とってもいい匂い。秋祭り？すごい。
Saury 2021 Play	Saury? What about them? Help out with saury fishing and get some delicious saury to eat... Understood. I'll help.
Saury 2021 Play	サンマ？サンマをどうするの？サンマ漁助けて、美味しいサンマを食べる…了解。私、やります。
Christmas 2021 Play	The Christmas feast is amazing. I want to save some for later.
Christmas 2021 Play	クリスマスのご馳走、すごい。しまっておきたい。
End of Year 2021 Play	The 6th fleet is also doing Major Cleanup? Understood. I'll do my best with the Major Cleanup.
End of Year 2021 Play	第六艦隊も大掃除？了解。大掃除、頑張る。
New Year 2022 Play	Admiral, Happy New Year. The 6th Fleet is still hale and hearty this year too.
New Year 2022 Play	提督、謹賀新年。第六艦隊は新年も健在です。
Setsubun 2022 Play	The 6th Fleet's demon is... Ah, that submarine tender called Jingei.
Setsubun 2022 Play	第六艦隊の鬼は…あぁ、あの潜水母艦、迅鯨とか言う。
Valentine's Day 2022 Play	Admiral, here... Umm, it's shipboard-made chocolate ice cream. If you'd like... Ah! It's fine. I made it with fresh water.
Valentine's Day 2022 Play	提督、これ…あの、艦内でつくったチョコアイス。よかったら…あぁ！大丈夫。真水作ったから。
Coming of Spring 2022 Play	The 6th fleet's cherry blossom viewing? I want to come. What should I be doing?
Coming of Spring 2022 Play	第六艦隊のお花見？やりたいです。何すればいい？
9th Anniversary Play	Admiral, it's great that we can celebrate the 9th anniversary.
9th Anniversary Play	提督、九周年お祝い良かった。

Misc Lines

Ship	Japanese/English	Notes
Spring 2022 Event Play	SS I-203, acknowledging. Flood the tubes. Ready to fire torpedoes.
Spring 2022 Event Play	伊203潜、了解。発射管注水。魚雷戦用意。

CG

Regular
Base Base Damaged Kai Kai Damaged

Seasonal
Rainy Season 2021 Rainy Season 2021 Damaged Summer 2021 Summer 2021 Damaged Autumn 2021 Autumn 2021 Damaged Christmas 2021 Damaged Christmas 2021 Damaged New Year 2022 New Year 2022 Damaged Saury 2022 Saury 2022 Damaged Valentine's Day 2024 Valentine's Day 2024 Damaged Kai Valentine's Day 2024 Kai Valentine's Day 2024 Damaged

Trivia

General Information

Her nickname is Fuumi.
She was launched on the 20th of October 1944.
Surrendered on the 2nd of September 1945 and was sunk as a target on the 21st of May 1946.

Update History

She was added on the 8th of May 2021 as Spring 2021 Event E2 drop.

Misc

Survived World War II.

I-203

Contents

Info

Gameplay Notes

Special Mechanics

Special Mechanics

Equipability Exceptions

Fit Bonuses

Important Information

Drop Locations

Voice Lines

Quotes

Hourlies

Seasonal

Misc Lines

CG

Trivia

See Also