Lena was told at a tripartite interview that her son might repeat a grade. I try to seduce my homeroom teacher with a color scheme so that my son can graduate. After the interview with the three companies, I heard a voice calling for Lena to leave the classroom. "What if Fukiishi knew that my mom was doing this with her teacher?" The main voice was a group of bad boys with tags that were still in the classroom after school. From here, the days of Lena's nightmarish humiliation begin ...