The first thing he noticed was his hair: a dark shade of auburn – his dyed hair, smooth on the corners of his face, a perfect frame that covered his profile. Then, a quick gesture of his hand to tuck some locks behind his ear and a glimpse of his dark eyes and his nose. (KangNam, AU) 

Kang Seungyoon is a painter. He starts to work on a portrait of a guy he once dreamed. He's obsessed to the point of wishing he was real.