Abyss of Dual Cultivation: Goddess's Lust system - Chapter 26

An RPG gamer who played the realistic VRMMORPG ‘The Amber Sword’ for years, finds himself teleported to a parallel world that resembled the game greatly. He takes on the body of an NPC who was fated to die, and with the feelings of the dying NPC and his own heartrending events in the game, he sets out to change the fate of a kingdom that was doomed to tragedy.

- Description from novelupdates

Before her rebirth, Wei Luo was an innocent little girl.

After rebirth, she appeared lovable on the outside but was a different person on the inside.

Those who learned of her true nature yielded to her.

Only the prince regent regarded her as a treasure; no matter how much he pampered her, it was not enough for him.

Anything she wanted, he gave her, including the princess position that she didn’t want, which he stubbornly pushed onto her.

- Description from Novelupdates

He became a teacher at the best magic academy in the empire.
….For being mistaken for someone else.