The story is about Rito Yuuki , a high-school boy who cannot confess to the girl of his dreams, Haruna Sairenji. One day when coming home and sulking in the bathtub a mysterious, nude girl, appears ...

Yami falls ill with a fever, and Rito rushes her to the hospital. As she recovers, Yami questions why Rito would help her. Haruna feels self-conscious about the size of her bust, and later finds a ...