Mio Akiyama is a main character in the anime series K-On! She is the bassist and a secondary vocalist of the band Ho-kago Tea Time. Mio is known for her shy and reserved personality, which contrasts with her close friend Ritsu's energetic demeanor. Despite her introverted nature, she is a talented musician with a passion for rock music. Her fear of being in the spotlight often leads to comedic situations, but she remains a dependable and supportive friend to her bandmates. Mio's character development highlights themes of friendship and overcoming personal fears.