What will happen when two childhood friends promised to marry each other the time they meet again, met in a different situation? Wherein the other has a girlfriend while his childhood friend still searching for him. Will their promise still be kept? Or it's time to move forward?

When my mind tells me that my heart shouldn't beat for you. Should I let you go? In a world full of secrets and deceit, Win chose a simple life away from it all. His passion to help people is everything to him. But his once peaceful refuge was shaken by those hungry for money and power. He was forced to marry Air, the daughter of his father's bestfriend. But what if she is already engaged to the man whom he thought he'd never meet again in this lifetime? A BrightWin AU fanfic