An ambitious, young freelance journalist takes on the closed case of a famous fine arts photographer whose beautiful female subject died on set in a gruesome fire.
Kuki Fumihiro is a son from a wealthy zaibatsu (conglomerate) family. His father raises him to become pure evil. Kuki kills his father to protect his adopted sister Kaori. Afterward, Kuki disappears. He undergoes plastic surgery and takes the identity of Koichi Shintani. He watches Kaori and faces the great evil that exists within the Kuki family.
An aimless college student comes upon the aftermath of a murder scene one night, and without thinking, grabs the titular weapon. He takes it home and keeps it safely hidden away, but curiosity gradually begins to consume him.
