Dragoon - The way to the dragon knight - Chapter 108

As a fiery young shrew, Xu Weilai was confident that no one would be able to resist her charms. However, time and again, she was thwarted by Gu Yu.

“Died by Truck-Kun. Reborn in a whorehouse. Blessed by a demonic system. And now? I'm about to make this entire fantasy world moan my name.”Kael Rennhart was just another overworked salaryman on earth—until fate and uncle-kun gave him a one-way ticket to Virelia, a mystical world of swords and sorcery.Waking up in the body of a broke brothel worker with zero prospects, Kael thought he hit rock bottom… until the Porn Empire System awakened inside him.[System Activated: Welcome, Embodiment of Lust.][Mission: Build the greatest adult entertainment empire in the realm.][Failure Condition: Eternal blue balls.]Now, with Lust Points to farm, kinks to unlock, and a cast of dangerously hot women (and men, and elves, and orcs, and... others) joining his cause, Kael must rise from gutter-level debauchery to become the Lust Overlord of the continent.But power, pleasure, and profit don’t come easy...

She was originally the young miss of the Marquis Estate, but became a peasant girl due to a mixed-up at birth.

It was supposed to be a perfect deal in which both parties got what they needed. However, after the child was born, he tore up the agreement with discontent and told her, “Who said that we’d only have one child? I want twins! Twin brother and sister! You’ll continue giving birth to more children until you bore me a pair of twins!”