Chanyeol sees his boyfriend, Baekhyun, on a date with his boyfriend's ex, Chanyeol's bestfriend Kris.

It’s been 50 years. Today would have been their 50th anniversary if their wedding pushed through. 

Baekhyun likes to watch the leaves fall on autumn, always waiting for the last leaf to fall.

What if we can go back in time? What if the past wasn't what it was?  What if you got what you wanted but it turned out, it wasn't really what you wanted all along?   Chanyeol goes back in time and lives a different life. The life he wanted for his present. But why does everything feels so wrong.

"Hey nerd!" He called out. She looked up and pushed her glasses up and Chanyeol was glad that he was right, it was the girl who sits beside him in his stats class. Baekhyun. "Shut up, jock." She rolled her eyes at him before returning to her book. Chanyeol, being the jerk that he was, snatched the book from her and raised it high up. "Hey! Give it back!" She shouted while struggling to tiptoe around the tall jock to reach her book. Chanyeol looked up at the book and squint

  “I’m married, Chanyeol. That’s why I can’t stay.” Baekhyun walked away and this time Chanyeol let him go.

Chanyeol's parents are against their relationship. Baekhyun has had enough.

  Chanyeol likes Baekhyun. Baekhyun likes Chanyeol. Ok so Chanyeol doesn’t really know that. It’s just a hunch. But he’s got a fool proof plan to know if Baekhyun does.

Chanyeol knew their past was gone. He's trying to build his future. He hopes and prays it includes Baekhyun.

 “I need a date for the dance this Saturday.” Chanyeol said. “Dance? There’s a dance this Saturday?” Baekhyun was scratching his head, he’s sure there’s nothing going on in his school this Saturday. “Yeah, in my school? Cause you know we don’t go to the same school.” “Oh yeah, right. Got it.” Baekhyun was suddenly wide-awake. Is Chanyeol asking him to be his date to the dance? But he cannot be, they’re not even dating, Chanyeol’s not even gay. Is he?