Sakura Hibiki (voiced by Fairouz Ai) is a high school girl who is very passionate about food. She has never considered the relationship between her food intake and her figure. One day, her life was overturned because her friend said she had gained weight. Summer is coming, and she can't go on like this! Sakura Hibiki decided to start fitness, but it is not easy to stick to it on her own, so Sakura Hibiki came to the gym. In the gym, Sakura Hibiki quickly made friends with the student council president Kanade Ryuin Akemi (voiced by Amamiya Sora), who is good at sports and has excellent grades, the gentle and considerate Uehara Ayaka (voiced by Ishigami Shizuka), Gina Porter (voiced by Toyama Nao), who is a Russian student studying abroad but is very fluent in Japanese, and the teacher Tachibana Satomi (voiced by Horie Yui), who has a secret unknown to others.