A dream traveler, that's what he is. He often visits other people's dream. While you're a lucid dreamer. You can control everything in your dream except when he showed up, you can't control him. At first you felt annoyed, but he frequently visits your dream so you became friends you wished it can be a dream come true.

One day you were at a book shop when suddenly you bumped into someone getting the same book he's so tall and handsome as hell. It was him —the man in your dreams, Calyx.