A girl with excellent grades, a modest personality, and a beautiful smile. Midori Aoi is a smiling woman who works hard to produce her work with all her might. Today, she was smiling all over the place, enjoying the blissful moment of being cheered on by not only the opposite sex but also the same sex, but she was also a man of many interests. The test result from the other day suddenly fell far from its normal position due to an unexpected mistake. Midori panics and takes measures as all her hard work up until now has come to nothing, but she manages to come one step closer, but her opponent is her homeroom teacher, Izumi Kuwabara, who is rumored to be a slut. However, the method she used against her opponent was more formidable than she imagined... This is the teacher's fiancée, Yoshimura-sensei, right? What is playing on Midori's smartphone is a scene of her fiancé Maho Yoshimura having fun with several students. Midori, who gets involved in dangerous negotiations, is brought to Izumi's suddenly changing hands and exposed cock... Midori, who has made it through the world smoothly, realizes her own failure when she feels the pain of her protruding cock pushing deep into her first bud... …