Suisei Hoshimachi is a fictional character from the virtual talent agency Hololive, known for her role as a virtual idol and singer. She is characterized by her blue hair, star-themed attire, and energetic personality. Suisei originally debuted as an independent VTuber before joining Hololive, where she gained popularity for her singing talent and charismatic live performances. In the series, she is portrayed as a hardworking and ambitious idol, striving to reach the top while maintaining a friendly and supportive demeanor towards her fans and fellow talents.