How to Reform a Villain [Transmigration]

You Yi transmigrates into a novel with one mission: sabotage the protagonist by breaking up his friendship circle. His first target? The righteous, aloof Senior Brother who's supposed to be the villain's greatest enemy. But as You Yi plays the innocent junior disciple, something goes hilariously wrong. Senior Brother's favorability skyrockets, he becomes the 'villain's babysitter,' and worst of all—he starts questioning everything he knows about good and evil. Now this loyal cultivator is determined to reform his mischievous junior brother's twisted worldview, only to find himself falling deep…