Brain scientist Shan Yu (Lin Fengsong) accidentally learns of the death of his first love Min Ying (Li Muchen). Min Ying was holding a birthday candle tightly before she died. Shan Yu lights the candle, and as the flames burn, a miracle happens - the candle can take him back to ten years ago! Shan Yu travels through time and space many times to save his love, but accidentally causes a butterfly effect; a deep love story that has been hidden for ten years also surfaces...