Hiroshi Koizumi is a student at Oshima Private School. One day, he receives an invitation to the science club from a girl named Sakura Sakura. Hiroshi's shy but falls madly in love with Sakura at first sight and visits the club, which is located on the outskirts of the school property. However, as soon as Hiroshi opens the door to the club, he loses consciousness...

When he comes to, Hiroshi finds himself on an operating table. He sees a small girl holding an old book. She's trying to experiment on him! What's going to happen to him!?

You will witness mysterious experiments, battles over the old book, and expectations of love in this love comedy.

[Edited from Gamelex]