[Clochette (Sakura Yuki)] Ore no Mawari ni Kyonyuu ga Oosugiru - the one Kyonyu-chan in every class series. [Hourglass]

An innocent‑looking schoolgirl in a uniform and twintails, whose massive breasts dominate every panel, discovers that her brother is the only male in class and decides to exploit his shock for erotic gain. The story unfolds through a series of escalating confrontations that culminate in a raw, on‑camera climax, highlighting the taboo of incest and the explicit act of nakadashi. This provocative doujinshi delivers a relentless, tit‑filled narrative that keeps the tension high from start to finish.