Mild-mannered Asakura Yuu stumbles upon a mysterious duffle bag holding a pistol and assassination orders, igniting a shift within him as the weapon's cool metal awakens bold new instincts. He steps into a shadowy realm of guns, peril and raw desire, where his sharpened edge draws him deeper with every choice. Back amid campus routines, his magnetic confidence sparks effortless connections that unfold in uncensored hentai heat through the teasing promise of blow job, boob job and hand job intimacies, even as the syndicate, police and the gun's true owner close in.