Mako Domon, a young educator newly assigned to Gyunabe High School, confronts a hostile environment dominated by delinquent students under Obayashi’s influence. Her tenure begins with relentless harassment: the class targets her with invasive acts, from orchestrated efforts to expose her underwear to public ridicule. Amid this turmoil, the principal further burdens her by appointing her as the rugby team’s coach.

The students’ antagonism intensifies into overt sexual aggression. After Mako shields Daigo from a violent altercation, he and his peers retaliate with an attempted rape. Struggling to navigate her dual roles as teacher and coach, she faces relentless objectification from the students and pressure from administrators demanding results despite systemic neglect.