Madman!

Li Xingyue accidentally discovers that his world is a romance novel, and that he is a minor, disposable villain in the early stages of the story. The protagonist shou is a pharmacist he picked up on a whim. He develops a twisted sense of possessiveness toward the shou, becoming increasingly jealous and even losing his mind over him. Zhou Jue, the eldest disciple he had nurtured with high hopes, is the protagonist gong. He will rescue the shou from his dungeon, and for the sake of this pharmacist, he will even break ties with his master, betray his school, and conspire with outsiders to kill his master. Upon waking, the first thing he does is toss the pharmacist into the alchemy furnace. As for Zhou Jue… Such an ungrateful, unambitious ingrate deserves to have his legs broken, be locked in a cage, and be properly disciplined. — Description from novelcodex.orgFull novel: Madman! — read the rest free on N​o⁠v​e⁠l​C⁠o​d⁠e​x⁠.​o⁠r​g⁠