Background

Chika is the second-year student at Uranohoshi Girls' High School who launches Aqours. She is the youngest of three sisters, comes from a ryokan-owning family which is known for their open-air, ocean-view hot springs. She is neighbors with Sakurauchi Riko. She has been Watanabe You's friend since elementary.

Chika's elder sisters' names are Shima and Mito. According to magazine material, her sisters are also fans of μ's, though this does not seem to have been retained in the anime adaptation. They also own a large dog named Shiitake.

Personality

Chika is sociable and rarely gives in easily. Her positive, can-do attitude gradually begins to affect everyone around her. She has a habit of explaining puns without being asked.