MTL - My Parents Are Omnipotent - Chapter 3 that's a good guess

Hiding in the Cold Palace and eventually becoming a Boss of Sorts. Li Mu was transported to a fantastical world and became a measly eunuch of the State of Xia. Despite having initially thought that his life would be a miserable one, he had unexpectedly acquired a check-in system.

To pass as an imperial concubine, one must be professional.

Actually, the profession of an imperial concubine is pretty good. The emperor will accompany you in eating and drinking, and even pay you for it. What’s not good about that?

- Description from Novelupdates

Song Yuan accidentally picked up a 5-year-old child.

The child has bright eyes, chiseled features, and prideful demeanor. He referred to himself as “this prince” and his mannerism was wild, cool, and stuck up.

“This prince will never eat such lowly food!”

“How dare you flirt with other men behind the back of my imperial father?”

“He insulted this prince and you sided with him? This prince will sentence his entire clan to death!”

Song Yuan was very disturbed. The DNA test had confirmed that the child was, indeed, her son, but why did he act like he was delusional?

More importantly, who was the father of the child?

The prince was going mad from worrying; Imperial Father, if you don’t come soon, Imperial Mother is really going to cheat on you!

- Description from Novelupdates

When Yohan woke up in the morning, he had a beauty in his lap and in his bedroom. It was like a dream come true for him until reality struck him.

It was then he remembered that he had been cursed by a goddess in the game he had been playing before sleeping. In his sleep-deprived state, he had offended the goddess and as a result, he had been cursed to become a 'no-good' man who could only provide 'support' to the 'heroines' of this world.

Thinking nothing of that curse beforehand, Yohan went to sleep, only to find his world-changing from that day onwards. His normal and mundane life was no longer going to be as such as more and more fantasy creatures began to show up.

And a female voice awoke him with a notification

*Ding dong ding.

Congrats on unlocking the fiction system. From here on, the user will experience the full scope of the logic of the fiction world. May the user use his PP and conquer everyone.*

And it was then Yohan realized - he was no longer in a world governed by science but one that followed the laws of magic. And the only way to survive was to utilize these so-called 'laws of fiction' to his advantage.

And the best and worst part of it all? The more he let his desire go, the stronger he became.