The beginning of his misfortune begins with "a child cannot choose a parent"... Kyohachi Tobita, who came home after being made to cry on New Year's Day, has Oto-sama make him a strong man. But it's literally... Kyohachi had become a superalloy cyborg. His father's hobbies include running at super-high speeds, and his head listening to his father's voice. His only hobby, shamisen, is also ridiculed by his father. What will happen to Kyohachi's high school life...?