He left his parents' home and lived in a dormitory at a private school. The meaningful student life has come to an end, and the graduation ceremony is finally over. My parents couldn't come by work, and on the day when I was supposed to end alone, it was my mother-in-law Yui who came running with a smile across the road. On the night when she and I had a secret love for each other, we sent our clothes to the hotel and said, "Happy graduation from me..." And he was going up one more adult staircase --