The center of attention in the romantic comedy is a young woman with a generous bust and a boy who is likened to a small creature.
Ken Yamada, a member of the student council, feels threatened by an oncoming danger. Rei Jinjuji, the beautiful and intelligent student council president, uses her ample chest to get what she wants. Whenever Rei presses her cleavage against Ken, he suspects that she is plotting his demise.
Will Ritsu be able to handle Mio's constant emotional attacks? What does Mio really want?