She divorced her husband 10 years ago and raised Tatsuya alone. Tatsuya also got a job and decided to live alone in April. One day, Tatsuya wanted to go to a hot spring for his graduation trip. I was invited to a hot springs trip just for the two of us. "Thank you, Mom. I always love you..." Emiko's heart shook at the unexpected confession from her son. After this trip, I refused to live on my own. A breath of sweet air blew through and parent and child actually opened the forbidden door...