One Piece: King of the World - Chapter 33 - : Insider?

Well-versed in both exorcising evil spirits and stabilizing homes, and expert in geomancy and divination.In the modern city where the practice of magic is not prominent, many believe that Chen Haitian is a genius with a rare talent for cultivation, one in ten thousand.However, only he knows that all his skills are self-taught through trial and error...

With the Goddess’ blessing, he became a 『Divine Knight』 and founded an Empire.
As time passed, he grows older, and by the time the heavens called for him to come, the Goddess showed before him, asking for his last wish.

He wished to be reincarnated in the future.
He dedicated all his life for his people, he had no time to master his own arts.
This time, he wishes to live for himself, forging his body to the utmost limit.

The Goddess complied with his wish.
In the far future, the King shall reincarnate as the 『daughter』 of a renowned Knight family.
And, under some circumstances, she is labeled as a failure of a Knight, however——

「How convenient. I can stand on the foremost line without needing any rank. No better training than actual combat!」

Thus, the legend of the world’s strongest, most beautiful Knight Disciple (♀) has begun—

She is the underworld Ghost Doctor’s only disciple, who accidentally transmigrated into the body of the main wife’s daughter in the general’s mansion. She used to be a punching bag.Now, she stepped on her dregs of an older sister, put her father’s concubine in her place, and teaches any objectionable aristocratic ladies a lesson.

Her days are rather free and unfettered. But when did that cold as ice prince from the rumors, sporting a deadpan face all day long, fix his gaze on her?
He unexpectedly fawned and pandered to her like a devoted dog?

“Go away, you rotten man! Careful or I’ll needle you like a pin cushion!”

“Wife, why are you so fierce? As a husband, I’m so scared”
….the man is all smiles as he approached, his eyes gleaming with a cunning light.

- Description from Novelupdates

Qin Guanglin is a regular guy living a cautiously regular life. Apart from his freelance job as an artist and his hobby of gaming, nothing has ever been out of the ordinary for him.However, when he meets a mysterious gamer girl offline, he is immediately blown away by how perfect she seems to be for him.Is it all a coincidence, or is it fate? He realizes that there is so much more to life than just staying in his own comfort zone.This is a tale of lost and found...