Ken is always playing alone because he is not sociable because he grew up in a single-mother family. Her mother, Eriko, was always worried about her shy personality and the fact that she couldn't make friends at all. One day, Ken came home with his friend for the first time. Eriko couldn't hide her joy for the first time in her life ... On the other hand, Yuji, a friend brought by Ken, was shocked by the beauty of Eriko that she saw for the first time and was about to lose her reason.
