My Father, Who Died in Battle, Returns? I Turn Around and Find Mom a New Husband

Forensic doctor Pei Hegui was born into the Great Gan Dynasty and became a sickly farmer's son.

His father died in battle on the very day he was born.

His greedy, insufferable grandparents coveted the compensation and decided to sell his beautiful birth mother to a local gentryman as a concubine!

Pei Hegui binds himself to a technology simulation System and immediately takes his mother to separate from the family and sever ties with them.

Five years later, on the surface, he is still a frail invalid who might topple in a breeze.

In secret, he builds firearms and establishes a merchant guild, becoming the richest man in Great Gan. Even the crown prince must respectfully address him as Imperial Tutor!

He has also raised his mother into a woman of elegant, noble bearing, and she is preparing to marry the chief minister.

On the eve of the wedding, the father everyone believed had died in battle five years ago suddenly returns alive!

Not only did he survive, he earned military honors and was made Marquis Who Guards the Nation. He even has an enemy princess, sent to marry for peace, in his arms.

The scumbag father sneers down at them: “In consideration of our past, I will grant your mother the position of honored concubine. You can just barely come into my household as a common-born son.”

His new princess bride covers her mouth and giggles: “Don't go getting the Marquis's residence's tiles dirty, you country bumpkins.”

Pei Hegui smiles.

He turns, tears off his frail-invalid disguise, and slaps a letter of divorce hard against his scumbag father's face.

“Marquis, you've got the wrong person. This is the lawful wife of the chief minister.”

“And, by the way, this entire Marquis's residence beneath your feet belongs to me.”

“Now take your little princess and get out of my territory!”

When the secret identities of the Great Gan Imperial Tutor, the Master of the Dark Night Pavilion, and the richest man in the world are exposed one after another,

the arrogant scumbag father breaks down completely, kneeling in the pouring rain and begging to be forgiven.