Shuumatsu Hospital

The cold, deliberate sound of high heels echoes through the quiet hospital corridors in the dead of night. Behind tightly closed doors, Misuzu Akao harbors a hidden reward in her pocket, nonchalantly revealing her dominant and captivating figure. Under Misuzu’s reign, mysterious emergency calls threaten to disrupt the night at any given moment.

Her colleagues, Rika Souhama and Mie Nakamaru, begin to grow suspicious of her unusual behavior. Fate eventually brings them together on the same night shift. Feeling uneasy, Rika temporarily leaves her fiancé, Shinichi—the doctor on duty—to secretly follow Misuzu during her room rounds. Moving down the silent hallway, she tracks her to a special patient room where Mie’s fiancé has suddenly fallen gravely ill. Peering through the cracked door, a shocking sight unfolds before Rika’s eyes…