Seeking Cultivation Novels, Please Read the Fine Print

The female lead transmigrates into the story. Before she arrived, the original female lead had always bullied the male lead. Later, he and the female lead fall for each other, but then he awakens and discovers he's the young master of the demon clan. He mistakenly thinks the female lead drugged him, making him fall in love with her, and keeps humiliating her. Later, the female lead becomes pregnant.