Light Novel[]
Rikka among the featured characters in Volume IV
Rikka looking at Nanao dressed in a girl's uniform
Anime[]
Rikka arguing with Donoue who bout expensive fireworks without permission
Rikka giving her speech during the sports festival
Rikka finishing her speech during the sports festival
Rikka Kajiura & Nanao Tachibana at a new indoor water park in swimsuits