Rion's boyfriend told her, "You have small breasts and you're bad at sex." Feeling depressed, she was walking slowly when she bumped into a relative. When she confided her worries to him, he said, "I'll teach you how to make your breasts bigger and how to become better at sex!" and they decided to go to a hotel together... Although Rion felt uneasy about doing something sexual with the older man, she wanted to do her best for her boyfriend...