Jungwon is your boyfriend who got into a car accident. After that, he lost his memories. He have amnesia. He doesn't remember anything. He doesn't remember any one, even you as his girlfriend. You keep trying and trying to make him remember that you're his girlfriend but he just keep ignoring you. He doesn't look convince at all.

He's reading a book when you got home from buying groceries. He doesn't even lay an eye to you as you entered the house.