A female teacher, Sakura Shiratori, has gotten used to teaching at a boys' school. At that point, I encounter a rape sacrifice by a male student. Sakura runs away naked while shaking her whitening huge breasts. However, she is found by a student and raped by a large number of male students, and even the student's father is violated. Sakura, who was caught by the students' weaknesses, obeyed the students, and was forced to do calligraphy with a brush in her lower lip.