Shuri planned to take her drunk coworker, Honami, back to her place. But the moment they arrived, Honami's older sister, Masumi, was there. Seeing Masumi caring for her sister at the doorway, Shuri felt a strange sense of familiarity. That night, invited by Masumi to stay over, Shuri felt the warmth of family she hadn't experienced in years. As something deep inside her began to fill, she drew close to Masumi—eventually crossing into a more intimate relationship. After that night, Masumi started murmuring Shuri's name in her sleep. Suspicious, Honami confronted Shuri directly, sparking the beginning of a new connection.