Heartwork

A mysterious duffle bag containing a firearm and assassination instructions falls into the possession of university student Asakura Yuu. Initially terrified, he experiences a transformation upon gripping the pistol's smooth metal, awakening a new, ruthless persona. Embracing this change, he carries out the hit and is plunged into a violent underworld defined by incessant sex and brutality. Returning to campus with his lethal new skills makes seducing women effortless. While both criminal syndicates and law enforcement take an interest in him, the greatest threat emerges from the weapon's previous owner, who is now seeking him out.