A local civil servant, a virgin in the anus, experiences anal sex with overflowing intestinal fluids and extreme tightness during her first time. This is the longest episode in the Gu Zi series, a special 260-minute milk enema ejaculation episode, KUSE-042.

In the series' longest anal play session, lasting 260 minutes, the naturally naive local civil servant with huge breasts screams in utter ecstasy! Despite being her first anal play session, she is thoroughly toyed with and enemas! Her diverse cosplay outfits, including cheongsams, Heisei-era gyaru costumes, and maid outfits, showcasing her lewd anal postures, are also a major highlight.