Hajime Mukaiyama is in love with Megumi Saginomiya, who is rumored to be the most beautiful woman in the school.
She wants to confess, but Hajime, who she wants to succeed, decides to talk to her childhood friend Misa Ihagi.
Misa, the director of the science department, decides to make a horekime medicine for Hajime that amplifies the slight love that her partner has.
However, the material of the medicine is Hajime’s own semen.
Despite Hajime’s embarrassment, Misa lowered the zipper on Hajime’s pants.