You were the smartest student in class. He was the most popular boy in school. You were overweight and friendless. He was perfect and for some reason, your best friend and only friend.Five years pass.You are an actress in South Korea. He is the lead vocalist of a popular idol group. Your debut movie was #1 in the box office for nine weeks straight. His group hits a record number of sales for their debut album.So what do you do when your paths cross? You havent thought about him in five years, and you dont know if he has thought about you. But you do know this: first love never works out for anyone.And not everyone has a first love that hates them. P.S. This fic is called "on and off" because not only are you and Baekhyun on and off, but its like a LIGHT SWITCH aka his fuckin magical power ayyyye how hella rad is that?!?!?! Foreword"Im going to be famous, you know." Baekhyun pauses tying knots in his shoelaces to glance over at you. He grins. "Sure, you are." "Im serious." Your brows furrow, forming a crease in your forehead."But what if fame changes you?" he pouts.You sigh dramatically. "I would be so lucky.""Youd better not forget me." "I would be so lucky," you repeat and narrowly avoid a violent punch to your shoulder. You laugh. "Dont worry, Baekhyun. No matter what happens, Ill be with you every step of the way."The smile fades suddenly from his face, and his eyes find yours, sharp and piercing. "Do you promise?" Youre taken aback by the serious tone he has taken, but you have to suppress a laugh when he shoves a raised pinky at you. You interlock it with yours and nod. "I promise."But you should never make promises you cant keep.