The school's empress, Sumire Mizukawa, treats all the men as slaves. She is forced to polish her nails, become a human stool, and use her as a footstool. When she becomes sexually frustrated, she becomes free-spirited and uses men as sex slaves to satisfy her sexual desires! The men band together, restrain Mizukawa, and take out their daily grudges on her by piston-fucking her with hard pistons! They use countless toys to make her squirt repeatedly until she changes her arrogant attitude! They punish her again and again!