Transferred to an all-boys school, female teacher Yuka Osawa confidently carried out her duties and earned deep trust from her students. However, one day, a jealous and resentful female colleague began targeting her with intense bullying, subjecting her to humiliating abuse. As a result, she lost the students' trust and, consumed by rage, was repeatedly and forcibly raped, with semen continuously pumped deep inside her. In the corner of the classroom, jets of female ejaculation spilled out uncontrollably, spreading further regardless of her will. Eventually, she became the school's sex slave, unable to stop herself even if she wanted to.