The remarriage of the mother who raised Rima single-handedly. I should be happy...but I should be happy... That person turned out to be her first love, her homeroom teacher... A feeling of jealousy swirled around me from the day I found out. Memories from my youth that I wanted so much but couldn't get because of the relationship between teacher and student. I feel bad for the teacher who didn't look at me. Anger towards her mother who has a woman's face. Unable to hold back, Rima decides to have sex with her at night on a dangerous day in order to convey her feelings for several years!