Shinobou and her boring usband Kosaku with their child,Hayato live peacefully in their life in Morioh.One day,Kosaku comes Home and is acting more....Loving towards Shinobou,He's actually caring for her and making dinner for their family and is just somehow better than the old Kosaku...But in reality,The kosaku who is acting better and more loving towards Shinobou is actually....unknown yet famous Morioh serial killer....Kira yoshikage. She wants him,but he may or may not want her back.