FSDSS-999 I wasn't satisfied with my boyfriend's... I went back to my parents' house and got addicted to the big dick of an older man. Sawa Yamashita

Sawa went to college in the city and returned to her hometown for the first time in a long time. When she meets her uncle, who she looks up to like an older brother, she tells him about her troubles with her recent boyfriend. Unable to suppress the desire he had been suppressed and the feeling that he had been cuckolded, the uncle tries to cuckold Sawa. Having discovered true pleasure, Sawa becomes addicted to sex with the uncle's persistent technique and big dick.