Miyu, who was raised in a single-parent household, is a laid-back and easy-going female college student. She adored her mother's younger brother, an unmarried uncle, like a father. The uncle also cherished Miyu as if she were his own daughter and watched over her growth. However, Miyu's boyfriend was a notorious womanizer who was simultaneously involved with five other women. Despite knowing about the five other women, Miyu continued their relationship because the sex felt too good, even eagerly swallowing his thick semen. The uncle tried to persuade Miyu to break up with him but thought that if he could satisfy her sexual desires more than her boyfriend, she would leave him. Thus, the uncle decided to make a move on Miyu. While restraining her, he had sex with her, causing her to convulse and reach orgasm repeatedly.
