Sin System: Demonic Harem After Reincarnation - Chapter 1

"An accident. She's pregnant. How unlucky. She got pregnant in one shot!

In the current era, people are either normal or are with ‘special abilities’. Cases related to the latter are managed by the “National Anomaly Prevention and Control and Special Species Management Office”.
Qi Zheng Emperor Sheng Lingyuan was reawakened a thousand years later after he jumped off the fiery Red Lake. Xuan Ji, a newly transferred staff to the Reparations Division of the Deviant Control Office, finds himself having to clean up the mess of a revived tyrannical monarch. The two seemed to share something from the past, but unbeknownst to them, a big conspiracy is stirring right underneath their noses that could destroy the balance of the world.

- Description from Novelupdates

[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.

Other people’s bad reputation, if not because of themselves, then it’s slandered by others. Jing Wan’s bad reputation wasn’t because of herself, but schemed by her future husband. Hong Yuan’s bad reputation wasn’t caused by others, but of his own design, only for the sake of marrying the woman he has had eyes on for two lifetimes! One unable to take a bride, one unable to marry. Because he was the number one handsomest man, but she wasn’t the number one beauty. So it was still her who has earned? What the hell?