MTL - The Sword of Galaxy - ~ chapter 82

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—

First, this isn’t a story about how to seek survival during Doomsday! It’s rather about how to bring about the end of of times, to bring down the curtain on the world. It’s about how to set off a Zombie frenzy, how to lead the Devil into invasion, and how to guide the descent of Zerg! In this game of doom, I’m the source of everything!

Second, I need to thank those brethren who accompanied me until now. My thanks go to the Lich Monarch, Arthas Menethil (game: World of Warcraft), bringer of endless winter and death; to Alex Mercer (game: Prototype), who created life by consuming viruses; to the Worst Spirit Tokisaki Kurumi (Light Novel: Date a Live), controller of time; to the Magus Ascendant Xerath (Game: League of Legends), imprisoned by runes.

Ladies and Gentlemen, lets bring about a carnival of doom!

- Description from Novelupdates

This novel is also known as Female Star Student Is Awesome

Her best friend turned into her younger sister, destroyed her appearance, broke her legs, snatched her powerful fiancé, and designed to kill her mother. Unsatisfied, she locked her up in a mental asylum to be tortured until death!

Yun Hua returned to 13 years of age with hatred. This time, the debt of blood would be paid in blood.

Oppress the poisonous sister, beat up the scumbag fiancé, become the top student, become a scholarly expert, become a manhua artist. In the end, she became the chief anchorwoman on the largest global broadcast…

With one careless mistake, she accidentally took the gold medal during the Olympic swimming competition. The entire country cheered for the champion without knowing that she had no such intentions…

But all along the way, that unapproachable man protected her from nearby.

He spoke: For you, I would block deities. For you, I would fight gods. For you, I would kill Buddha!

He spoke again: If you don’t leave me, I won’t give you up either. I would rather turn my back on the world than slight my darling.

- Description from Novelupdates

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.