Global Reincarnation: Only I Know the Plot - Chapter 8:

No NTR-IncestA Boy struggles with the problems of being raised in a family full of lewd older women.

Jade Hunter? The man which many women want to meet? If she really was a girl, then if she were to dress in a female attire… wouldn’t she look beautiful and refine? She is his fiancee? Could it be that she disguised herself as a man to avoid marriage? She would rather go catch thieves and hunt for bandits than to marry this wangye?

No, he will not let this happen! She is bound to be his!

For the arrest of a bandit, she became the hostage and jumped off a cliff? Dead?

…Nonsense! He does not believe! She is destined to become his wife, and he will find her…

Found her!

Although she repeatedly denied and repeatedly avoided him, he will find a way to let her fall in love with him!

Su Yun was a prodigy, blessed by the gods. However, life is never so easy. Soon after reaching 6th stage in spirit novice realm cultivation, his progress stagnated due to incurring a rare medical condition.

A few years go by, and Su Yun has spent all his time gambling or drinking, 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 bride to someone she didn’t love, only to be executed by the groom on the wedding night for fleeing. Burning for revenge, he scoured the world for a cure for his rare medical condition from both righteous and villainous side.

Countless years go by, and finally Su Yun not only found a way to cure his rare condition but also gain immense knowledge on a myriad of martial techniques.

But before he could fully cure himself, he received news that the groom suffered an assault that damaged his internal organs. Rather than wait for decades to become fully cured, Su Yun decided to hatch a plan for the assassinate of the groom. Unfortunately, he underestimated the strength of the groom’s family and was killed instead.

Then he regains consciousness. He comes to a realization that he went 15 years in the past. This time, he vowed to protect Qing Er, but first he must cure his rare medical condition. Will he learn from the mistakes of his previous life or is everything still set in stone?

- Description from Novelupdates