Strongest Survival by Otome Game’s Heroine (LN) - Chapter Volume 1 27: Oath With Elena

Waking up in the middle of that, she nearly screamed—until she saw him.Her cold, obsessive husband. The man she had spent an entire lifetime running from.In her past life, she trusted the wrong people. She abandoned the man who truly loved her and ended up betrayed, ruined, and dead.This time? Ha! Divorce? Dream on.Since fate gave her another chance, she’d play the game her way. Stay mysterious, act sweet, and turn every schemer against each other.And as for the dangerously obsessed husband?Let’s see who traps who first!

Having transmigrated into the world of Journey to the West and become Tang Monk, equipped with a gaming system that allows for battling demons and leveling up, while looting equipment, from then on, the demons on the path to the Western Heaven were in danger. Monk Sha: Big Brother, it’s not good, another demon has been captured by Master. Tang Monk: You all listen to me today, it’s not you protecting your master on his journey to the Western Heaven to seek scriptures, but rather your master has to drag you all along, you know? Without you, your master alone would have fought, uh, made it to the Western Heaven by now...

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

In the legends that were told, ten thousand years ago the twelve demon kings wreaked havoc upon the world, almost completely destroying it. Ten thousand years later, the late arriving Bella discovered that she had been screwed over by her reincarnation, the ranks of the Saviors are already filled and she has to change teams in order to pass the days. Having her gender changed into a beautiful girl… she endured that, not being able to join the righteous side and obtain cheat abilities… she endured, but what she could not endure, was that the world that she had transmigrated to was toxic beyond belief. No one here does their rightful jobs properly, be they heroes, demon kings, or creator gods… in fact, Bella felt as if they all had also started with the wrong faction!