The harsh stage of corrective education unfolds between high-achieving female students and their twisted teachers. The teachers imprison the students, robbing them of their pure minds and bodies. The elderly instructors subject the girls to brutal torment, their bodies continuously drenched in creampie after creampie. The students' spirits gradually break down until they can no longer maintain their sense of self. This film portrays how a student struggles to protect her mind amid the relentless assault.