Zither Emperor - Volume 3 Chapter 20.3

Due to an unexpected turn of events, Xia Fei consumed a Super Gene Optimization Fluid that bore no brand, expiry date, instructions or stated its place of origin.
Our story begins here…

After a brutal attack leaves him for dead, Alex awakens in a new world unlike any he has ever known. Reborn into a prestigious family, he is thrust into a realm where power defines worth, and ancient secrets lie hidden beneath layers of intrigue.Determined to seize this second chance, Alex must navigate dangerous family rivalries, uncover the truth about the enigmatic woman who saved him, and master the powers now at his disposal. As he delves deeper into mysteries, he finds himself at the center of a growing conflict—one that could shape the fate of this world and his place within it.Will Alex rise to the challenge and rewrite his destiny, or will the forces against him ensure his downfall once again?

She had never expected that she would slept with her deadly enemy,but it turned out to be a good match for both of them.

while after marriage ,his indifference finally angered her.

You damn bastard!

Transform into Divine Dragon and dominate the world!
He is the only Divine Dragon in the sea who founded an underwater Dragon Palace.
With Crawfish Soldiers and Crab Generals as his followers, wild sharks and gigantic octopuses as his subordinates, he is the dragon that rules the city.

- Description from Novelupdates