The Barber (2012)

A barber, Kouichi, has married another barber, Aya, and lives in her parents' house. As Aya's parents run a barber-shop, her brother, Satoru. and father, Akira are also barbers. This shop was opened up by Akira, taken over by Aya and Kouichi, and supported together by Satoru who is going to get married soon. On a few days before Satoru's wedding, Kouichi recieves one mail.