Akira Fudo, man - devil lives in the house of his girlfriend Miki. One day, he encounters a Zhimenom, the demon who killed his mother. After the meeting, a young man decides to declare war on the monsters. Meanwhile, Siren with his henchmen begin the hunt for the Devil Man, seeing it as a threat.But this vision with the help of Akira warns imprisoned in his body the demon Amon. Coming brutal and bloody fight.