High school student Mizushima receives Valentines Day chocolates from the new student, Monami. Little did she know that the chocolates contained traces of Monami’s vampire blood. He gets infected from eating them and Monami confesses that she wants to live with him forever as vampires. Meanwhile, Mizushima decides that he wants to fully become a vampire with Monami’s help. Keiko, Mizushima’s girl friend, sees the two on the school rooftop kissing and in a state of hysteria, attempts to throw Monami off the roof but falls off herself instead. Keiko dies but her father, Kenji Furano, the mad scientist, resurrects her as Franken girl. Thus begins a deadly combat between Franken Keiko and Vampire Monami in the name of love.

A recently widowed writer whose wife died in a bus crash comes to terms with his grief—or lack of it—in caring for the children of a working man who also lost his wife in the same accident.