Lena, a quiet and serious girl at school and at home, has been worried that she can't make new friends since she moved. However, the trouble is not only that, since I was little, I have been feeling more than my brother and sister, and I am spending my days masturbating and comforting myself with that feeling that I can not tell anyone. One day, Rena, who can no longer suppress her overflowing thoughts and desires, takes action for the first time in her life! !