Todo, an old wealthy man, is fascinated by the appearance of Sayumi walking in the graveyard in midsummer, holding the urn of his late mother. Sayumi, who doesn't know her father, longs for Todo like her father and begins to love him as a man. One day, Sayumi, invited by Todo to visit the villa, finds a portrait of Kazumi, a girl with pigtails that looks exactly like her. And the relationship between Todo and Sayumi begins to go crazy in an unexpected direction due to an uninvited guest who arrives on a stormy night.
Ami, raised in China, is a high school student who practices Chinese martial arts and swimming. She comes back to Japan because of her mother's remarriage. Hiroshi, a careless college student, likes to take women’s pictures secretly. Hiroshi goes to a girls swimming pool locker room to take photos with his friend, Takimoto. When he gets home, Hiroshi sees Ami whom he saw at the locker room. Ami's mother and Hiroshi's father gets married and they go on a honeymoon, leaving the two alone in the house. Whenever Hiroshi tries to get near Ami, her martial arts prevents him but gradually they become closer…
