After enduring harsh anal stretching starting with foreign object insertion, Fubuki Aoi experiences anal sex for the first time in her life. Repeatedly subjected to vibrators, anal beads, and even insertion of konjac balls, she overcomes extreme anal expansion and eventually tastes pleasure for the first time. Mysterious scenes unfold, including lesbian sex with a sex doll, deepening the narrative. Later, in a gonzo-style lesbian shoot, she undergoes intense anal penetration with a strapon, an experience that becomes profoundly impactful. In the aftermath, her backside squirming as she walks, her retreating figure exudes the raw, visceral reality of losing her anal virginity.