City hunter Saeba Akira (Takaya Kamikawa) takes on difficult cases in the dark and punishes the bad guys. He has a partner and fiancée named Makimura Kou (Saki Aibu). One day, however, Kana is involved in an accident and loses her life. Stunned, Noboru learns that Kou had made a donor card before her death, indicating her willingness to donate her organs. However, after Shang is determined to be brain-dead, his heart is stolen by someone.