Accidentally Became the Villain's Little Cotton Jacket

Cheng Weiwan transmigrated as the protagonist's spirit beast—except his intern system arrived a century too early. Stuck as a wandering soul for a hundred years, he finally gets his mission when the system dies: find whoever holds the Black Jade Token and help them conquer the cultivation world. But there's a problem. The cold, cunning man he's been secretly helping isn't the hero—he's the villain destined to fall! Now Meng Xianjue, a reborn demonic cultivator with a tragic past, has discovered his helpful little spirit and refuses to let go. As possessive eyes track his every move, Cheng Weiw…