[Kai Yi Er San + Jian Versus Xingtian + Villain System.] The protagonist isn't really a villain.
Wang Xiangyang accidentally transmigrated into a parallel Armor world, only to find himself in the body of a dying man with the same name. He also became bound to a Villain System, gained the power to summon the Emperor Armor, and was told by the System that the only way to fully recover was to eliminate all the righteous Armor Heroes.
Complete System missions to extend the time before his illness flares up.
System: “Detected a Netherworld Legion soldier fighting desperately while under attack by an evil Armor Hero. Host, escort him to safety immediately. Mission reward: organ failure suppressed for three days.”
Feiying Armor: “You bastard! You're an Armor Hero, yet you're helping a Netherworld Demon!”
Jingang Armor: “I knew he was a traitor! I'm gonna take him out!”
Xingtian Armor: “Friend, don't help the wicked! He's committed every evil imaginable. If you let them go, they'll just kill more innocent people!”
Lufa: “This is a godsend! The Emperor Armor is on our side! We've got this!”
Netherworld Demon: “Th-thank you...”
Wang Xiangyang: “Mission complete. Behold, my Emperor Wind-Piercing Strike!”
Baru: “General, that guy's a complete lunatic! One minute he's saving our brothers, and the next he's taking them all out!”
Wang Xiangyang: “As the ultimate Emperor Armor, isn't it perfectly reasonable for me to take out you Netherworld Demons?”
Huan Ying: “That guy's insane! He saves the Netherworld Demons, then kills them even more brutally!”
Yan Di: “You keep bouncing back and forth between good and evil, yet you can still unleash such a terrifying presence!”
@Forget-you-ji-an Where is Bing'er?
Update more, it looks great
It's okay, but the villain needs to be put in quotation marks.
Author, keep updating, keep updating, keep updating, please.