MTL - Divine Brilliance - Chapter 539 5 Cai Xiangyun

A man was transported to Ancient China and eventually became a servant of a declining household without a male heir. He utilized his wits and modern knowledge to help the household and eventually become trapped in the sea of political turmoils of the period.

- Description from Novelupdates

Claire receives a strange dream the night before her 18th birthday, an unknown goddess offers her power as her paladin. This power comes with a “gift” Claire was not ready for, but if it means getting her brother back, then she'll master it. Join Claire and her party as they navigate adventuring, fighting against tyranny, and the gifts the goddess bestowed them.

Orlax Tirshtain is the villain in the global game [Unification of Empires]. The tyrannical, cold-blooded emperor is a man who slaughtered his own family with his own hands and ascended the throne with their blood—a power-obsessed madman. Despite five years having passed since the game’s release, no one has been able to defeat this lunatic. So, how the hell did I become this damned?????