Kyoukai Senjou no Horizon - Volume 1, Chapter 09: The One Waiting Beyond the Door

After getting betrayed and killed by the only person she’d loved, Miss Shang wakes up in the body of the cowardly crown prince Shang Wuxin, who, due to her own circumstances, was actually a girl cross-dressing as a boy. After inheriting the crown prince’s memories, Shang Wuxin has three things on her agenda:

1. Clean up the house

2. Gather loyal followers and soldiers

3. Get the throne

- Description from Novelupdates

Good news: You've transmigrated! And you have a phenomenally powerful master!Bad news: When you were ten, your master ran off and left his wife behind, leaving you to prop up the crumbling sect all by yourself.Good news: An uninvited junior sister shows up, claiming to be the number one beauty in the world!Bad news: You were born blind.Good news: Suddenly, one day, you realize you have regained your sight!Bad news: Something is wrong with your junior sister… Something is wrong with your master's wife… Something is wrong with all of them!…You Su , who had always been a blind man, wakes up one day to see giant tentacles dripping with copper-green slime writhing restlessly all around him. He traces the tentacles back to their source—the entity wearing that snow-white, celestial dress is no holy fairy maiden, but a shifting grotesque mass of filthy flesh.…“You can see?”“Don't be afraid, Fairy. I'm blind.”

Kazuki’s life was painfully average—just another cog in the nine-to-five grind. His only escape? Binge-reading novels and no-lifing video games.Then he woke up inside one of those novels.Armed with unstable morals, unhinged humor, and a penchant for pettiness, Kazuki is determined to survive, thrive, and maybe cause a little chaos along the way.The world has no idea what’s coming.

The salaryman who had a dream of becoming a CEO has finally succeeded.

However…

There was no one. No one was around to celebrate his success. Then on his first day of work, news of the death of a former colleague that he had laid off came. Additionally, his family left him, who was only concerned about the company.

The life he thought was right crumbled right in front of him. Where the heck did it all go wrong? Then, another opportunity came for Han Yoo-hyun, who had plunged down into despair.

This time, for sure. He was going to live properly. He was going to change it all with his whole being. The new life that Han Yoo-hyun was creating.

That valued life that will outshine any other is unfolding now!