MTL - Problematic Sister Fell In Love With Me - Chapter 1159 ] A trace of coolness like fire

Li Xuan traveled through the world of immortality and opened the apprentice system, and both apprentices and apprentices could be rewarded for upgrading.

【Ding! Accepting apprentice Qin Yue, reward you: Innate Divine Power]

【Ding! Accept the apprentice Zhao Tian, ​​reward you: call the wind and call the rain]

【Ding! Apprentice upgrade, reward you: space shuttle]

….

Li Xuan, who accepted a bunch of apprentices, evolved infinitely in seclusion.

Ten years later, the Devil Emperor invaded and wanted to sacrifice the whole world, but no one could stop it. The disciples watched the world fall into despair in pain.

At this time, Li Xuan appeared and slashed a sword against the Demon Emperor under the watchful eyes of the public.

Boom!

The sky fell apart, the invincible Demon Emperor fell on the spot, and the entire dark world was swept away by a sword.

The disciples were horrified. It turned out that the strongest person in the world was actually the master who had been in seclusion for ten years.

- Description from novelbuddy

She was reborn back to 11 years ago, when everything was fine, her family was still alive and she had not experienced the pain of destruction. Since she had the chance to restart, she decided to seek revenge on those who had hurt her! She would also leverage her knowledge and strength to lead her family to a prosperous life. However, she has a regret: despite being reborn, she still ended up marrying him, a man who was difficult to approach...

A new era of power has dawned upon the world. Mortals now wield the elements themselves through their awakened Genetic Spirits, shaping nations and destinies.But not everyone is so fortunate. Sin Clemoth Falmerdic was born with nothing—no affinity, no power, and no future. After witnessing the destruction of his city and the death of all those he held dear, he vows revenge on the veiled enemies who unknowingly left him as the sole survivor.But when Sin attains the Infinite Spirit Energy System, his journey shifts.His thirst for vengeance fuels an insatiable desire for power which eventually consumes him, driving him to rise above all who stand in his way.“There’s no peak for me. Every level brings me closer to godhood.”

Another entry in what you can call the Proto Harem Series: the books written before the Harem Series that take place in the same world.

It’s about a swordswoman whose student is captured, so she goes to rescue her.