Having divorced her husband 10 years ago, Shiori has raised Taichi with just one female hand. Taichi successfully graduated from college and got a job at a printing company. However, it takes more than an hour to commute, so Shiori recommended Taichi to live alone, but Taichi refused to leave the house. On the contrary, I didn't go out to play on my days off and didn't bring my friends or girlfriend. Shihori was worried and sometimes invited him to a hot spring trip to take him outside.