MTL - Hokage: Ryo’s Path - Chapter 446 Watergate and water stop crisis

A young man plagued by recurring nightmares finds himself visiting a blind fortune teller, who sends him to a world of martial arts that looks a lot like the wuxia stories he used to read.

In the sky of this world, a tome shines every now and then, revealing the hierarchy of mighty beings that seek power amid troubled times. Determined to unravel the mysteries of his involuntary journey and the secrets of the world he has ended up in, he endeavors to ascend the tome’s rankings, all while looking for a path back home.

Official Chinese blurb

Wandering the jianghu with a blade and wine, where beauties’ grace is filling one’s mind.

A youth, saber on his back and wine gourd at the waist, strides forth, yet the jianghu of his heart seems only more elusive;

With each flipped page of the Tome of Troubled Times, decades of nights soaked in rain pass over the jianghu.

As he suddenly turns to look back, he finds that the mortal world has shattered in his wake.

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MC: I am a dragon? Cool!
Also, MC: Wait, most of the dragons died after centuries of being hunted for their expensive materials, and when beings called players descended with their powerful systems and immortality, they hunted down rest of them ... and I am the last one... I am fucked!!!
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Join our MC, a former player on his journey not to become a legendary rank item, in a world of the game that he used to play.
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“Married rich for three years with no child born. Just when she was finally cured of infertility and ready to give him a child, he brought home his pregnant mistress in high profile.

A young boy genius, Suo Jia, is a water mage who dreams of being a warrior travelling the great and dangerous trade routes to find his lost father that set off on them before Suo Jia was born. Having to look after his sick mother, Suo Jia manages to find a way to solve all their problems, as well as make a name for himself. He gathers nobility, vast wealth, items of great power, knowledge lost to the ages, and exceptionally talented females around him as he plots and plans – preparing to set off on an epic journey that will go down in history as a new legend. However, will others that depend on his powers so much be willing to let him go on such a dangerous journey so easily?

- Description from Novelupdates