Ranran's anger explodes over the upstairs noise, so she storms the room to complain. The nest of sweaty men who claim to be sports students is a garbage-filled dirty room. Irritation MAX! Going full sadistic mode, she cleans their room for them. When these stamina-seemingly-limitless, sperm-obsessed guys meet G-cup gal 蘭々, creampies and ejaculation counts break all limits!