Netheril’s Glory - Chapter 120: The Mentor and The Apprentice.

A Journey Across Time, A Battle for FreedomWhat if you could go back in time?What would you do?Stop the world war?Stop slavery?When Joseph Situma, a modern-day man, is thrust back to the year 1542, he is reborn as Khisa Lusweti, the son of a village chief in Eastern Africa. Struggling to bridge the gap between his past life and his new reality, Khisa must navigate the brutal tides of history. But as he uncovers the looming horrors of the transatlantic slave trade, he realizes that fate has given him a chance—an opportunity to change the course of history.Armed with knowledge beyond his years and the trust of a people who see him as both a leader and a boy, Khisa must unite warriors, outthink ruthless enemies, and fight for a future that was never meant to be. But history is not so easily rewritten, and with every victory comes a greater challenge.Will he defy destiny, or will the weight of the past crush him before he can break the chains of oppression?A gripping tale of resilience, strategy, and the unyielding spirit of a people on the brink of war.

A failed investor from 2017 got drunk and woke up in the 1980s. China is just opening up, and the economy is blooming. There is also the dissolution of the Soviet Union, the bursting of the Dot-com bubble and other financial crisis. He used his knowledge of the future and slowly build up his empire.

- Description from novelupdates

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—

It was supposed to be a perfect deal in which both parties got what they needed. However, after the child was born, he tore up the agreement with discontent and told her, “Who said that we’d only have one child? I want twins! Twin brother and sister! You’ll continue giving birth to more children until you bore me a pair of twins!”