Akira who left her parents' house and lived in a dormitory. The day of the graduation ceremony, when such student life came to an end. When she is on her way home with her alumni, a woman approaches with a smile while waving from the other side of the road. Hoka, her mother-in-law, was secretly visiting him to celebrate. However, she said, "Today is a celebration," said Hoka, who was so happy that she got drunk. Akira, who once had her secret admiration when she lived with her, suppressed her desire to boil over her full of gaps and managed to send it to the hotel.