Mr. and Mrs. Hosaka are forced to return to their parents' home after their husband, Taizo, lost his job. His sister-in-law, Rion, welcomes him warmly, but his eldest brother, Shuichi, severely reprimands Taizo for leaving. "Since you've come to this house, Eri-san will also follow the rules," he says, but Eri, who doesn't know anything, doesn't get it. After a while... while Eri is drying the laundry, she sees Rion greedy with her second son, Ryoji. With Eri unable to hide her turmoil, Rion begins to talk about the customs passed down in the family...
