"It has always been Byun Baekhyun and Park Chanyeol.

They really couldn’t help it. Not when your parents were best friends, your older siblings were best friends and you were born only six months apart. It didn’t hurt that they have always been next door neighbors, with their second story bedroom windows only about six feet across from each other making it hard for their mothers to put them to bed on time. It didn’t matter at all that they were complete opposites—Chanyeol was tall to Baekhyun’s short, awkward to Baekhyun’s graceful, dog to Baekhyun’s cat (yes, well)—because it has always been Byun Baekhyun and Park Chanyeol. Best friends. Comrades. Partners-in-crime."

This is baekhyun and chanyeol as they grow up together... drift apart... and maybe find each other again.