Hoshimachi Suisei (星街すいせい) is a female Japanese Virtual YouTuber associated with hololive. Originally an independent VTuber who eventually was recruited into hololive production's label INoNaKa Music, she was transferred to the main hololive branch on 1 December 2019. She is currently part of "hololive 0th gen" alongside fellow solo debutants: Tokino Sora, Roboco, Sakura Miko and AZKi.
Suisei owns a personal management agency "Studio STELLAR" focusing on her solo activities.

"A shooting star that appeared from diamonds in the rough; I'm the virtual idol Hoshimachi Suisei!"
A virtual idol with an exceptional love for songs and idols.
She works tirelessly towards her dreams of performing in Tokyo Dome one day.