The novel begins with a rich-man's master who, after suddenly leaving his parents' home, graduated from physics school for 600 yen from his brother's leave, gained a 40-minute math teacher in a rural middle school. At this time, the master says he has an upright, fine personality to come from the house and then leave, promising to pick him up again when he finds his only - a servant-in-law who acknowledged and spared him and finds a home. Rural junior high schools were places where children