At a certain general hospital in Tokyo, cunning and ruthless criminals who have evaded the law are admitted for treatment. Among the staff is Reiko Mikazuki, a beautiful and intelligent nurse who is adored by both patients and medical professionals alike. However, beneath her angelic face lies a darker side. She is an executioner, delivering merciless justice to the wrongdoers. With her hands stained red, she walks a fine line between being a beautiful angel in white and a seductive demon of judgment. A thrilling suspense story of complete retribution, where the line between good and evil becomes blurred.