Name: Ritsu Tainaka
Age: 16-18,26 (Mojo Hojo Rumble),29 (Mojo Hojo Saviors),31 (Mojo Hojo: the Movie)
Relatives: Satoshi (Younger brother),Ishamie Tarker (step son)
Allies: Yui,Mio,Tsumugi,Azusa,Rex,Sawako & more...
First Appearance: Dissolution! (K-On!)
Theme:Gumi - Mozaik role
She has an ambiguous yet upbeat personality, but often has trouble remembering important club activities and announcements, and gets constantly yelled at and wacked by Mio after forgetting to send in important forms concerning the club even though often reminded by Nodoka . Ritsu is cheerful, often likes making jokes and is sarcastic most of the time. She usually brainstorms for ideas to earn more money and for the club’s success. She has known Mio since elementary school and often teases her whenever she is cowering from somethingand has the opportunity to do so. Ritsu is always on the go and will stop at nothing for the success of the light music club.