～Her greatly developed G-cup huge breasts... "I feel so happy being messed up by uncles" Middle-aged cock loving female student～

Yuka, a female student attending school in Tokyo, lives with her salaryman father. She appears to be a quiet honor student, but has a strong habit of fantasizing and masturbates daily while imagining being pinned down and violated by middle-aged men.

One day, the neighbor uncle Oshima who brought the circulation board attacked her while she was sleeping and had sex with her. From then on, Oshima's friends Kitayama and Hino also joined, and she gradually fell into a life of debauchery.