MTL - Blackstone Code - ~ two thousand one hundred

[You have entered the dungeon at Gwachun Station’s 1st Exit.] When former high school student Kang Woojin finds himself returned back to Earth after being forcibly summoned to a foreign planet for 20 years, he soon finds that Earth is not the same, normal place as he once remembered it to be.

Zhang Siyi, a graduate student of architecture department went back from overseas seeking for work, he had a heated fight with his ex-girlfriend in a cafe. Angered, his ex-girlfriend was about to splash a cup of coffee in his direction but he managed to dodge it. As he stepped back, the misfortune was met by the handsome guy next table instead.

The following next day, as Zhang Siyi headed for a company interview, he discovered that the interviewer was the same man who suffered the splashing of coffee.

Hopeless, Zhang Siyi thought this work was unalterably unattainable, but that handsome man unexpectedly “disregarded past grudges” and decided to hire him. Even more, the man had become his immediate superior.

To accept Zhang Siyi by the said man, he was moved to tears with such magnanimity and kind-heartedness. Never had he realized it yet that his “miserable” fortune has just begun…

- Description from Novelupdates

Chu Nan was just an ordinary student, but because of an accident, he obtained the data collection, analysis and processing ability equivalent to the most advanced optical brain.

[space + ancient times kingdom building + escaping from famine]

The big shot from the future, Bai Wutong, transmigrated to ancient times with her space pocket! Before she could feel happy, she found herself in a chaotic world! There was murder, robbery, schemes, sky-high prices, and many other things happening all around! The moment she arrived, she had killed two people. Then, she also kindly saved someone, but was deceived and stalked as the person insisted on following her. If that’s the case, then don’t blame her for using aggression in return!

After she finally managed to settle down, she was assigned to the frontier to develop the lands. The remote lands were out of anybody’s control, and there was nothing more that Bai Wutong could ask for. After a few years, Bai Wutong accidentally led the richest man of the previous dynasty, the prime minister, the commander of the secret guards, a great scholar of the dynasty, the holy maiden, as well as the divine doctor… and turned the barren land into a rich, noble town that everyone desired. When the emperor and his ministers came to admire the place, they were dumbfounded. That man who was pouring tea beside Bai Wutong… Wasn’t that the eldest son of the previous emperor, who had been dead for many years?!