(Extremely satisfying story + violent villain + ruthless killing + side effect transfer) Han Yu, a villain who has been crushed nine times by the protagonist's halo because he didn't have any cheat codes, finally awakens the Malice Reversal Side Effect System. Anyone who harbors malice towards Han Yu can have their side effects transferred to him! Protagonist, huh? You think you're tough? You beat up the younger generation and then the older one, huh? Fine! I'll go crazy with my death, I'll give you all the side effects, let's see if your life is tougher or my cheat codes are tougher! "Young Master Han Yu, you can't take too many of those pills, the side effects are too great! ...What? How can you ignore the side effects and flaunt the pills like candy!" "Young Master Han Yu, you can't go to that secret realm, it's too dangerous, the environment isn't suitable for human survival! ...What? How can you move freely inside?" "Protagonist? Alien race? Enemy? Resent me! Hate me! And then live an ugly life!" Protagonist: Side Effects, Villain