Time Travel: Did My Sister-in-Law Get Slapped in the Face Today?

Li Lan transmigrated to a cultivation world and was immediately beaten to the ground by his sister-in-law, who even tried to force him to divorce her sister. This was incredibly humiliating! She even claimed his wife was more formidable than her; it seemed he'd married a tigress. But Li Lan, a modern man from the 21st century, had read countless novels and witnessed countless workplace scheming and backstabbing. He could turn the tables in a heartbeat, making his sister-in-law apologize and even marry him in place of her sister!