Archenemy

“I will become a demon.” A young man with a dark past, known in Murim as Won-Su. After living a life without an identity, he feels remorseful. He finds a lover, which he thinks must have been fate. After losing his mother, he escapes Jungwon, but gets caught up in Murim and ends up losing his wife. Even so, he grows older alone, without getting involved... (Source: Mootoon, translated)