Chika is the second year student at Uranohoshi High School who launched Aqours. She is the youngest of three sisters and comes from a family with a ryokan known for its open-air, ocean-view hot springs. They also own a large dog named Shiitake.
Chika is very energetic, goofy, sociable and has a very strong sense of perseverance. Her energetic and perseverant nature also makes her rather impatient and easy to tease about giving up, only to make her even more perseverant on achieving her goal