At a general hospital in Nerima Ward, an affair between a gynecological nurse assistant and an internal medicine doctor is exposed. The footage leaks, and the head nurse, who happens to witness the scene, hires a private detective to conduct hidden camera surveillance in order to maintain hospital order. Obtaining the recording, she continues digging deeper to uncover the truth behind their relationship. On the delivery bed, intense sexual intercourse takes place—her legs restrained, she moans loudly with each forceful thrust, but thanks to the soundproof walls of the gynecological ward, the noise doesn't reach other departments, allowing even bolder acts. Their sex transcends mere infidelity, expressing genuine affection to the point where their relationship seems not wrong, but right. Repeated throughout the hospital, this secret bond becomes a rare source of healing amidst their duties as medical staff.