Mai is a beautiful teacher who is enthusiastic about education and serious.One day, she witnesses the delinquency of Kawagoe, a student at the same school who has bad behavior and is a problem child.Mai slaps her in response to Kawagoe, who has a disrespectful attitude even though she warns her. She leaves the place saying, "If you play around too much, you will be dealt with appropriately."Kawagoe, who was warned, feels like he was looked down on and feels resentment.And with the help of the hoodlum seniors, he planned an outrageous scheme.Kawagoe says she wants to apologize on the phone.The fate of not believing those words...