Transmigrated into a Book: My Sickly Obsessive Disciple Goes Mad for Me

Intro: Synopsis: [No female lead + Obsessive + Master-disciple + Sweet and angsty] Reborn villain, a yandere mad disciple x Transmigrated into a book, a little sun master Liu Buli transmigrated and became the perverted master of the villain BOSS. To protect his disciple and himself, he poured his heart and soul into the villain, cherishing and doting on him to the extreme. He thought his disciple would be upright and have a smooth path, but when he wasn't looking, the disciple swung his sword to break the heavens, bathing half the cultivation world in blood. Liu Buli: ??? Amidst mountains of corpses and seas of blood, the villain smiled with utmost tenderness. He said, "Master, they say we shouldn't be together. So now, can we be together?" Liu Buli: ... Stay away from me, I'm scared!