Chanyeol was an angel, the kind with huge, white, feathery wings adorning his back. When he would pull his wings in to hide them, they looked as if they were just a large, angel wing back tattoo that covered from his shoulders down to his hips.  His hair was curled and dyed a vibrant orange color and his body was long and lean. 

An angel has no feelings, they do not feel happy or sad. They don't feel anything. Yet when they touch a human, whatever the human is feeling at that time, becomes what they feel as well. If they are allowed access into your mind, they will search your thoughts, your emotions and your memories. They are here to study humans. Not to fall in love, not for fun. Chanyeol was sent to study the humans.

But he fell in love, in a world where he has nothing but echos in his mind.. he fell in love with a ghostwriter. Named Wufan.

Wufan was shy, he spoke as if he was from another timeline ( not unlike Chanyeol ) and he enjoyed studying the angel just as much as the angel enjoyed studying him. He wrote stories about him, about the stories that Chanyeol would tell him. Chanyeol was his first friend once he moved to Seoul.. It never bothered him how odd he was at first, always touching and holding onto him. Nor did Chanyeol's blunt and uncaring attitude ever affect him. 

Wufan fell in love, in a world where angels are things of myths... he fell in love with the sunshine. Named Luhan.