Hoshimachi Suisei (星街すいせい) is a female Japanese Virtual YouTuber associated with hololive.

Introduction Video

【自己紹介】彗星の如くあらわれたアイドルVTuber!!!【 01】

【自己紹介】彗星の如くあらわれたアイドルVTuber!!!【 01】

  Suisei's introduction.


Suisei is a modest, multitalented singer and aspiring idol who is among the more level-headed members of hololive. However, after her unexpectedly compelling performance as a traitor in a game of Project Winter, she gained a reputation for remorseless sociopathy behind a facade of polite sweetness.[4] No one seems to know how much of the "Psychopath Suisei" persona is real or not, but Suisei herself acknowledges the comedic potential of the joke and has referred to the incident on multiple occasions.



Her Twitter account and YouTube channel were created on 18 March 2018. Her introduction video was uploaded four days later on 22 March.[5]


On 21 June, she debuted her second 2D costume. Like her first one, her movements and animations were limited.[6] However, this costume was later updated to have much more movement, which included her hair and hat.

On 1 July she became a member of a VTuber group called S:gnal. On 4 August, a month later, she announced on Twitter that she graduated from the group and resumed her activities as a solo idol a week later.[7]


On 11 January, she revealed a third 2D costume.[8]

On 19 May during AZKi's first live, she appeared as a surprise guest performer where she performed her second original song "天球、彗星は夜を跨いで" (Tenkyuu, Suisei wa Yoru wo Mataide). It was afterwards announced that AZKi and Suisei would be affiliated with Inonaka Music (INNK MUSIC), a music label under hololive.

On 27 July she along with AZKi participated in INNK EXHiBiTiON, a label event hosted by INNK MUSIC. It was held at Entas in Akihabara.[9]

On 29 November, she published on Twitter that she would be transferred from Inonaka Music to hololive's main branch.[10]

On 1 December, she announced on her Twitter account that she would get a brand new 2D model,[11] this model was later revealed the same day during a stream on YouTube.[12] With this stream her transfer to hololive became official.[13]


On 2 January, she published on Twitter that she would get a new 2D costume. This was revealed to be a kimono in celebration of the new year, the same day as her YouTube channel.[14][15]

On 19 January hololive's Twitter account published a tweet mentioning that Houshou Marine, Hoshimachi Suisei and Shiranui Flare would participate in a stream prior to hololive's 1st fest Nonstop Story.[16][17] The next day, in the same stream, it was revealed that the three of them would get their 3D model debut in said event, but that they would have a YouTube debut later. In Suisei's case, her stream was scheduled for March.[18]

On 24 January, she appeared in her 3D model for the first time at hololive's 1st fest Nonstop Story, with both her new standard and idol outfits.[19][20]

On 25 February, she announced on her Twitter account the date for her 3D model debut on YouTube, which was scheduled for 1 March.[21][22]

On 1 March, she appeared in her 3D model for the first time on YouTube during a stream.[23]


  • Her fanbase is officially called "Stargazers", while in Japanese they are called "Hoshiyomi" (星詠み)


  • Considerably multi-talented as she is capable of drawing (her original image was drawn by herself), edit videos, sing, cook and is also a notable gamer.
  • She is notably good at playing Tetris.
  • The hashtag #星街すいせい3D (#HoshimachiSuisei3D) became a trending topic worldwide on Twitter when she debuted her 3D model on YouTube.
  • Her birthday and her debut date are the same.

External Links

Hololive Logo
3D talents Tokino Sora (🐻) (A-chan and Ankimo)Roboco (🤖)・Sakura Miko (🌸)
2D talent Hoshimachi Suisei (☄️)
1st generation Yozora Mel (🌟)・Aki Rosenthal (🍎)・Natsuiro Matsuri (🏮)・
Shirakami Fubuki (🌽)・Akai Haato (❣️)
2nd generation Minato Aqua (⚓️)・Murasaki Shion (🌙)・Nakiri Ayame (👿)・
Yuzuki Choco (🍫💋)・Oozora Subaru (🚑)
hololive GAMERS Shirakami Fubuki (🌽)・Ookami Mio (🌲)・
Nekomata Okayu (🍙)・Inugami Korone (🥐)
3rd generation
(hololive Fantasy)
Usada Pekora (👯)・Uruha Rushia (🦋)・Shiranui Flare (🔥)・
Shirogane Noel (⚔️)・Houshou Marine (🏴‍☠️)
4th generation Tsunomaki Watame (🐏)・Tokoyami Towa (👾)・Kiryu Coco (🐉)・
Amane Kanata (💫)・Himemori Luna (🍬)
hololive China Yogiri (🎸)・Civia (🌙🦄)・Spade Echo (🍑)
Artia (❄️)・Rosalyn (📖)・Doris (🐟)
hololive Indonesia Airani Iofifteen (🎨)・Moona Hoshinova (🔮)・Ayunda Risu (🐿)
Retired Hitomi Chris (🌰)
Holostars Logo
1st generation Hanasaki Miyabi (🌺)・Kagami Kira (💙)・Kanade Izuru (🎸)・Arurandeisu (🍕)・Rikka (⚙️)
2nd generation
(Sun Tempo)
Astel Leda (🎭)・Kishido Temma (🦔💨)・Yukoku Roberu (🍷)
3rd generation
Tsukishita Kaoru (💅)・Kageyama Shien (🟣)・Aragami Oga (🐃)
Retired Yakushiji Suzaku (💊)


  1. _17meisai23 (2019, December 1) と言うことで…星街すいせいちゃんの新デザイン担当させていただきました…!!!☄️ どうぞ宜しくお願い致します🙇‍♂️
    1. ほしまちぎゃらりー [Tweet] Retrieved from
  2. rariemonn765 (2019, December 1) ホロライブ所属Vtuberの星街すいせいちゃん(@ suisei_hosimati)の新Live2Dモデルの制作を担当させていただきました!今からお披露目配信です!よろしくお願いします![Tweet] Retrieved from
  3. 3.0 3.1 3.2 3.3 suisei_hosimati. (2018, April 2). B-W-HのBはバストはバストでもトップバストという意味なんだけど、すいちゃんは間違えてアンダーバストを記載しておりました……正確なやつはここに貼っとくね……みんなにドジっこすいちゃんが根付いてしまう……!!!!!!😱😱😱 [Tweet]. Retrieved from
  4. Hoshimachi, S. [Suisei Channel]. (2019, July 23)【ProjectWinter】裏切者は誰だ!?雪山ホロ人狼【星街視点】[Video File]. Retrieved from
  5. Hoshimachi, S. [Suisei Channel] (2018, March 22) 【自己紹介】彗星の如くあらわれたアイドルVTuber!!!【#01】[Video File] Retrieved from
  6. Hoshimachi, S. [Suisei Channel] (2018, June 27) ほしまちすたじお【#3】[Video File] Retrieved from
  7. suisei_hosimati. (2018, August 4). 【お知らせ】1/2
    [Tweet]. Retrieved from
  8. Hoshimachi, S. [Suisei Channel] (2019, January 11) 【雑談+歌】ほしまちすたじお【#10】[Video File] Retrieved from
  9. "【一般販売6/8~】『INNK EXHiBiTiON』#イノナカ". PassMarket
  10. suisei_hosimati (2019, November 29) 💫いつも応援して下さる皆様へ💫 [Tweet] Retrieved from
  11. suisei_hosimati (2019, December 1) 🌟配信情報🌟 12月1日 🕗20:00〜 ……おや!? すいせいの ようすが……!【新衣装&メイクお披露目】 遂にこの時がやってきました!!!! すいちゃんのかわいいかわいい新しい姿をお披露目しちゃいます!!!!✨ 🔽今日のライブ会場🔽 #ほしまちすたじお [Tweet] Retrieved from
  12. Hoshimachi, S. [Suisei Channel] (2019, December 1) 【新衣装&メイクお披露目】……おや!? すいせいの ようすが……!【ホロライブ/星街すいせい】 [Video File] Retrieved from
  13. ホロライブ所属VTuber「星街すいせい」新Live2Dモデルお披露目放送と転籍のお知らせ. Retrieved from
  14. suisei_hosimati (2020, January 2) 🌟配信情報🌟 1月2日 🕙17:30〜 新年一発目!!あけましておめでとう!【新衣装お披露目】 ホロライブお正月新衣装リレー2日目! 新年から一味違ったすいちゃんをお披露目しちゃうぞ!✿ 🔽今日のライブ会場🔽 #ホロライブ正月衣装 [Tweet] Retrieved from
  15. Hoshimachi, S. [Suisei Channel] 【新衣装お披露目】新年一発目!!あけましておめでとう!【#ホロライブ正月衣装 / 星街すいせい】[Video File] Retrieved from
  16. hololivetv (2020, January 19) 【今日20:00〜】 1/24 #とまらないホロライブ に向けて… ホロライブ公式YouTube Channelで 「ライブを100倍楽しむための放送!」決定! #宝鐘マリン #星街すいせい #不知火フレア の3名が参加! 放送はこちらから→… ▼ニコ生視聴チケット発売中! [Tweet] Retrieved from
  17. hololive_En (2019, January 20) [8PM today] 1/24 #NonstopHololive is soon!✨ "Stream to enjoy the live 100 times more!" on the hololive Official YouTube Channel! #HoushouMarine #HoshimachiSuisei #ShiranuiFlare will be there! Link→ ▼ niconico tickets on sale! [Tweet] Retrieved from
  18. [hololive ホロライブ - VTuber Group] (2020, January 20) 【 #ノンストップストーリー 】ライブを100倍楽しむための放送!【 #とまらないホロライブ 】[Video File] Retrieved from
  19. hololive_En (2020, January 24) [Songs Performed!] 🎵  This is the Happiness and Peace of Mind Committee (Inugami Korone)  🎵  13 (Uruha Rushia) 🎵  Tenkyuu, Suisei wa Yoru wo Matagu de (Hoshimachi Suisei) #とまらないホロライブ [Tweet] Retrieved from
  20. hololive_En (2020, January 24) [Songs Performed!] 🎵 Dream☆Story (Sora, Roboco, Miko, AZKi, Suisei) 🎵 Yumemiru Sora e (1st Gen) 🎵 Go-toubun no Kimochi (2nd Gen) #とまらないホロライブ Photo By Ayo Kajino [Tweet] Retrieved from
  21. suisei_hosimati (2020, February 25) ⚠重大告知⚠ #星街すいせい  #ほしまちすたじお [Tweet] Retrieved from
  22. suisei_hosimati (2020, February 25) ‼ 3 D お 披 露 目 日 程 決 定 ‼ 3月1日 21時~ Suisei Channel にて!! やっとお披露目できるよおおおおおおお 絶対みんなを満足させるようなお披露目にさせます!! 絶対に見に来てください!!! #星街すいせい  #ほしまちすたじお [Tweet] Retrieved from
  23. Hoshimachi, S. [Suisei Channel] (2020, March 1) 【#星街すいせい3D】全編ライブ!歌って踊る姿を見てください!✨【ホロライブ / 星街すいせい】[Video File] Retrieved from
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