Uta lives with her older brother. His older brother was addicted to drinking and gambling, and sexually assaulted his younger sister Uta on a daily basis. Uta's life was just about enduring the days in order to survive. One day, the older brother tells Uta to sell his body to make money. And for starters, she gets raped by his older brother. Realizing that his sister can make money, the older brother gathers customers and the creampie circle begins.