Hakuro (Satoshi Tsumabuki) works as a veterinarian. His father died when Hakuro was a child and his mother later remarried into the wealthy Yagami family. But he does not feel like part of them. After the death of Hakuro's mother, Hakuro broke off relations with that family. One day, he meets a woman. She introduces herself as the wife of his stepbrother and informs him that his stepbrother is missing. As Hakuro and the woman trace his stepbrother's whereabouts, Hakuro becomes involved in the Yagami family's fight over a three billion yen inheritance.