Kyuhyun and Sungmin have been together for 3 years now. They've had plenty of fights, so when Sungmin leaves the house angrily it doesn't suprise Kyuhyun. But what happens when Sungmin gets into in accidant and forgets everything that's happened in the past 5 years? Will kyuhyun be able to bring back his love? Inspired by The Vow :) this is my first time writing a Super Junior fic, so I'm very sorry if its bad.