The adversary wizard of the manhwa you've become dependent on is Cove Astaroth. Cliché enough, he's a misinterpreted character that shows care for the female lead but does it indifferently. After the manhwa's creator passed away and it was left incomplete, you became so distraught that you began to isolate yourself. Eventually, you find yourself stuck in the manhwa, and the first person you encounter is Cove.