When Mina accepts a last‑minute invitation to a networking event, she is startled to find her brother seated opposite her. Yet she chooses to keep this fact hidden from the other attendees—even as the king"s game they play becomes progressively erotic. Meanwhile, the dynamic between Sayaka and her brother shifts when he discovers a waist‑high aperture in the partition separating their rooms. Will Sayaka realize that her brother is observing her most private moments? Her awareness of this may change everything. She feels uneasy.
