Tsukasa Shiori

Somewhere in Tokyo exists a general hospital where cunning and heinous criminals who’ve slipped through the cracks of the law are admitted. Working there is nurse Reiko Mikazuki — beautiful and brilliant, admired by both patients and fellow medical staff. But behind her angelic face lies another side. She is an enforcer who delivers merciless punishment to evildoers. With blood on her hands, is she a beautiful angel in white... or a seductive demon of judgment?

Suddenly, the entire Naito family is diagnosed with an incurable disease and told that they have only one month to live. The youngest brother, Tomoya, is asked if there is anything he has left to do before his death, and what he says is "revenge".

Sayori Somei, a forensic scientist, has a "peculiar constitution" that allows her to "hear the corpse's voice" by talking to it. However, her daily life is disrupted by an "eerie corpse" brought in by Detective Takemoto.