Due to Taizo's unemployment, the Hosaka couple returns to his family home. His sister-in-law Rion warmly welcomes them, but his elder brother Shuichi sternly reprimands Taizo for returning. 'Since you've come to this house, Eri must also follow our customs,' he says, but Eri, who knows nothing about it, doesn't understand… Some time passes… While Eri is hanging laundry, she sees Rion and the second son Ryoji in a compromising position. Unable to hide her shock, Rion begins to explain the family's traditions to Eri…
