[R-Koga] Nii-chan's Property 3 (Nii-chan Senyou) [Shiro Translation]

A short‑haired sister, drenched and trembling in a bath, is drawn into a forbidden encounter with her brother, who later dons a frilly maid outfit and teases her about her wet skin. Their intimate play quickly intensifies as he penetrates her while she arches, and the scene shifts to a graphic double‑vaginal act with another male, highlighting the taboo sibling dynamic. The tension builds as each character revels in the illicit pleasure, promising a climax that blurs the line between sibling affection and erotic desire.