Haname, who works for a magazine, is always struck by bad luck. Once her mom, who believes the 'impossible', went to hunt Kappas (Water spirits) at the swamp behind their house, where she was attacked in a mysterious manner and went unconscious. After the accident, Haname finds a letter that her mother left, disclosing the identity of her real father. Haname decides to look for him and finds him. He appears to be a weird man who runs an antique shop. But Haname never tells him what is her real identity.