A young woman named Yuka works hard every day to earn money for her beloved host, even going so far as to perform sexual acts at public bathrooms. Her services include blowjobs for 5,000 yen, intercourse for 15,000 yen, and creampies for an incredibly low bonus price of +5,000 yen. Despite being in love with him herself, she can't help but feel that he's taking advantage of her by sleeping with other men.