Mitsuhashi Haru is a high school freshman and the boy she adores, Shijou Toma, has just confessed to her. She happily accepted his confession as she has had feelings for him ever since he helped her out on the day of their entrance ceremony.

They went back home together after that and on the way, she suddenly found herself feeling grossed out by him. Just as she realises this, Shijou suddenly appeared as a frog to her??