Twitter followers 76.9K

▲ +2.7K / 29d

YouTube subscribers 139.0K

▲ +4.9K / 29d

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Shirose Isumi

1 year strong

AKA Isumya / Isumiya城瀬いすみ城瀬いすみ🏰🍬にじさんじ

NIJISANJI NIJISANJI (main branch) Active Last active 4 weeks ago on Twitter

About

A Japanese NIJISANJI VTuber in the main branch, Shirose Isumi debuted in September 2025 as part of Splare. He streams in Japanese, mostly free-talk and gaming, with character design by DSmile and the fan name Kurasumyaito.

Shirose Isumi (城瀬いすみ) is a male Japanese VTuber associated with NIJISANJI. He is part of "Splare" (すぷれあ) along with Sumeragi Reo, Hanakago Tsubasa and Shinomiya Yuno.

Bios from their socials (2)

Bio (from YouTube)

おっきなお城に住みたいな～！🤍✨ にじさんじ所属🌈🕒「すぷれあ」最年少15歳高校1年生！城瀬いすみです！🏰🍬 °˖♡- - - - - - - - - - ʚ🏰ɞ - - - - - - - - - - -♡˖° 【❥SNS】 ಇ 城瀬いすみ X ：❥http://twitter.com/Shiro_Isumyan ಇ すぷれあ X ：❥https://twitter.com/splare_info ಇ すぷれあ YouTube ：❥https://www.youtube.com/@splare_nijisanji 【❥Welcome Goods＆Voice】 https://shop.nijisanji.jp/TAG_696 °˖♡- - - - - - - - - - ʚ🏰ɞ - - - - - - - - - - -♡˖° 【❥いすみゃとのやくそく！まもってね！】・他の方の配信で話題が出ていない時に、いすみゃの名前を出しちゃだめ！・誰かが傷つくようなコメントしちゃだめ！　「やさしく」だいじ！・配信内容に関係ない話、リスナーさん同士の会話はしちゃだめ！　いすみゃだけみてて！・ゲーム配信中などの指示、ネタバレコメントはしちゃだめ！　いすみゃが助けてって言ったら助けてほしいな～！ ※上記を気付かずにやってしまう人がいても、指摘や注意などはしちゃだめ！スルするーのが、おにーさん、おねーさんだよ！いすみゃと、大好きなおにーさん、おねーさんたちとの大切な居場所を守るために、やくそく！だよ！ദ്ദി ˃ ᵕ ˂ ) 【🌈にじさんじ公式X🕒】 http://twitter.com/nijisanji_app 【🌈にじさんじオフィシャルストア🕒】 https://shop.nijisanji.jp/1175 【🌈にじさんじ公式HP🕒】 https://www.nijisanji.jp/ 【🏰お問い合わせやお手紙はこちら！🍬】 https://www.nijisanji.jp/contact ※未成年者の視聴者の方々は、下記リンク先の注意事項もご覧ください。 https://www.anycolor.co.jp/notice-for-minors

Bio (from Twitter)

おっきなお城に住みたいな～！🤍✨にじさんじ所属🌈🕒すぷれあ(@splare_info)最年少15歳高校1年生！城瀬いすみです！🏰｜ಇ まま！(@DSmile9)｜ಇ FA #シロ展示館｜ಇ 配信 #いすみと登城｜ಇ お問い合わせ➨nijisanji.jp/contact

Character Info

Country Japan

Gender Male

Birthday 23 December

Age 15 years old

Debut 2025/09/19

Height 165cm

Weight ....

Languages Japanese

Zodiac Sign Capricorn

Community

Streaming Language Japanese

Speaks Japanese

Fan Name Kurasumyaito (くらすみゃいと)

Genres free-talk, gaming

Oshi Mark / Emoji 🏰🍬

Hashtags

Live #いすみと登城

Fan Art #シロ展示館

Thumbnail #おめかシロ

Egosurfing #いすみいいこ

Recent Activity

Recent Tweets

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Introduction Video

Gallery

Full Body

Full Body Without Jacket

Key Visual by DSmile

Reference Sheet

Idol Uniform

Appearance

Isumi has a slim, youthful build with short, luminous silver hair that is parted and styled neatly. His face is characterized by sharp, refined features, including light grey-pink eyes.

He is wearing a mint-green argyle-patterned knit vest worn over a white collared shirt. This is complemented by an oversized, structured light-blue jacket with subtle details, paired with matching light-blue trousers and clean, minimalist white sneakers.

Trivia

Main Color: black; Secondary Color: black
Isumi shares the same character designer with Cecilia Immergreen of hololive English, Amayui Moka of VSPO!, Appare Hinata of Weather Planet, Anshinin Misa of Specialite, and Yuzuha Riko of StelLive.

Contributors

This profile is enriched by VTuber Wiki community editors. Thank you to:

Ninamarie12 ×32 Datasuki ×4 MyPastel31 ×3 RogueModron ×3 Seeeeew ×2 Gaaruru simp ×1 Holonerd13 ×1

Credits sourced from VTuber Wiki page revision history. Vtubie and Hololist do not expose per-page contributor data, so this list reflects VTWiki editors only.