Rikako Muto

Rikako Muto is a teenage girl who moves with her mother from Tokyo to Kochi. Class president Yutaka Matsuno introduces her to school and to his best friend, Taku Morisaki. During a school trip to Hawaii, Rikako asks Taku to lend her money after saying she has lost hers, but her request for yen rather than dollars raises questions about what she needs it for.