Hitori's Fan #1

She is a film student of an art university, who is also one of the known fans of Hitori Gotoh, later Kessoku Band as well after their first concert. She alongside the second fan have known Bocchi since her street concert with Kikuri Hiroi, and later always supported Kessoku Band in many of their appearances and befriended the members.

(Source: Bocchi the Rock! Fandom-Wiki)