Tatsuya is brought into the room and immediately restrained without any explanation. The older sister takes control, initiating the session—his expression initially tense and stiff, but quickly shifting as the stimulation begins. With his wrists bound and vibrators placed all over his body, he writhes in pleasure, his handsome features contorted in ecstasy. As his nipples and cock are stimulated simultaneously, he eventually reaches his limit. The highlight lies in the intense pleasure delivered by the dominant sister and Tatsuya's helpless reactions.