Harry Potter: Dimensional Wizard - Chapter 44: Room of Requirement

Chang An, capital of Tang, the most powerful empire in the continent. A heaven wrecking massacre shook the city to its core. Amidst the incident, a young boy named Ning Que managed to get away, dug out from a pile of corpses along with a little girl called Sang Sang. Years passed, and since that day the two of them lived together. Together with Sang Sang they both entered the military, with plausible military achievements, they were recommended into the Scholar School, which began their miraculous journey.

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!

There was once an immortal cultivator fighting for the fate of human beings. Unfortunately, he failed that time; but fortunately got another chance as he was reborn once more as a human, on the earth of 5,000 years ago. With a second chance, he not only would embark on the road of saving all mankind, but also would retrieve his human nature on the new journey that would last for 5,000 years.

- Description from Novelupdates

Journey through the combined world of the Special Forces series and become the acknowledged bad soldier of the Iron Fist?

Don’t panic! The “Strongest Individual Soldier System” is here to help. Every time you upgrade a level, not only will your body be strengthened, but you can also acquire super skills. At the beginning, you will activate the S-level shooting skills, which will amaze the audience and overwhelm everyone! Thus, a vanguard that made the heads of state tremble was born…

He Chenguang: “Did you practice martial arts from the womb?”

High school team: “He is the scariest individual soldier I have ever seen, bar none!”

Lei Zhan: “It’s unlucky. In his hands, I’m like a three-year-old child. I can’t beat it! I can’t beat it!”

He Zhijun: “Xiao Lin, the future of Langya is in your hands, I will retire early!”

- Description from novelbuddy