[A female teacher is chased around the school and raped! Real gang rape] Former students who were forcibly expelled from school have become a group of DQNs and attack after school as a "thank you visit". They sense the danger and run away, but... they are hiding in the school and pursue with all their might, and the number of people increases, leaving them with no place to escape. The teacher resists, being forced to cum in her mouth, confined and piston fucked from behind, forced to strip and bukkake, restrained and left with a fixed vibrator, and gang raped three times in a row, and is cornered and turned into a sex slave!