Yuki, a mother who lost her husband three years ago and raised her son by herself. She moved to a new land with a small amount of inheritance, and was worried about her shy only son, but... My son's friend who was able to do it for the first time is approached and has a physical relationship. The guilt towards my son, the secret of immorality that I couldn't tell anyone, it was supposed to be that one time. However, friends appear in front of Yuki who can't forget her young body... [*The image may not be clear due to bleeding or blurring]