[Amulai Okashi Seisakusho (Sasanomanibi)] Imouto to Irekawatta Onii-chan wa, Sono Mama Oishiku Itadakarete shimaimashita. [JusenkyoTL]

An older brother and his younger sister, after a mysterious body swap, find themselves locked in a heated, secretive encounter where she teases his worries and he yields to her desire. Through intimate panels they explore the tension of forbidden affection, with her urging him to give in while he confesses his lingering concern, their bodies intertwined in a mix of playful provocation and genuine passion. The story builds toward a climactic surrender as the sister, confident and seductive, invites him to abandon restraint and enjoy the illicit pleasure they both crave.