I Pampered the Villain Thinking He Was the Hero [Transmigration]

Shen Changyue wakes up inside a novel as a doomed villain destined for brutal execution by the hero's hand. His survival plan? Latch onto the protagonist before it's too late. He empties the treasury, showers a tortured youth with rare elixirs, and plays the devoted benefactor while screaming internally about self-preservation. Just when he thinks he's successfully tamed the 'protagonist' and secured his future, reality delivers a devastating twist—he's been pampering the story's ultimate villain all along. Now the dark lord he accidentally raised won't let him go.