DSOD-060 — My incredibly kind, big-breasted girlfriend was seduced and impregnated by a delinquent senior. (Ayatsuki Nanao)

College student couple Nanao and Nobuyuki were living happily together. One day, they encounter Yanagisawa, Nobuyuki's senior and a local delinquent. Yanagisawa, who had always bullied Nobuyuki, sets his sights on Nanao and breaks into their house while Nobuyuki is out. Yanagisawa puts an aphrodisiac in the tea they offer Nanao and makes her drink it, causing her to become intensely aroused. Every time he touches her body, she feels intense pleasure, and even though she wants to resist, she gives in to the pleasure and accepts Yanagisawa's penis! After that, Yanagisawa continues to pressure Nanao into having sex with him, and before long, Nanao finds herself addicted to him...