Suyun was a prodigy, blessed by the gods. However, life is not so easy. Soon after reaching the 6th stage in cultivation, his progress stagnated because of a rare medical condition. Years go by, Suyun spends all his time on gambling and alcohol, wasting his youth away, but one day everything changes. Qing Er, the only one who stood by him was forced by his clan to be a sacrificial pawn to be married off to someone she didn't love, only to be killed by the groom on the wedding night for fleeing. Burning for revenge, he scoured the world out for a cure for his rare medical condition from both righteous and devilish sides. Countless years go by, finally the prodigy not only has found a way to cure his rare condition but also gained much knowledge in martial arts.
But before he could fully cure himself, he received news that the groom suffered a major internal injury. Rather than wait for decades to be fully cured, Suyun decided to hatch a plan for the assassination of the groom. Unfortunately he underestimated the strength of the groom's family and was killed instead. As he regains consciousness, he comes to a realization that he went 15 years in the past. This time, he vowed that he must prevent Qing Er from ever getting hurt again, but first he must cure his rare medical condition. Will he learn from the mistakes of his past life or is everything set in stone?