A-chan (Ei-chan), also known as Yuujin A (lit. "Friend A"), is a Hololive staff member and manager. She is a popular character in the Hololive fandom, despite not officially being a virtual Youtuber herself. Designed by Amagai Tarou.
- Harusaki Nodoka
- Daidou Shinove - former Holostars manager. Note that A-chan is not (has never been) a manager of Tokino Sora or any other hololive member.