Chief Kim and Assistant manager Choi - Chapter 75

In the Sky Sword Continent there are thousands of sects and strong cultivators as common as trees. In order to prevent his older sister from being forcefully married off, Lu Xuan had no choice to but to unceasingly cultivate and enter a sect to ask for a favor. By chance, a sword-shaped crystal of mysterious origins entered into Lu Xuan’s body, containing countless top-class martial skills, powerful martial arts, and everything you could wish for! A martial legend starts here…

- Description from Novelupdates

It was a time where demons roamed the earth and chaos reigned. The story took place in Luoyang, the legendary capital of the times. During the night, one could find people holding on to their food with dear lives as they faced off against stray dogs, people with weapons in hand vowing to fight against Fate to their very last breath. There was bloodshed everywhere as some died meaningless deaths, while the strong tyrannized the weak and the truth was frequently hidden. Some of the citizens had completely lost their mind, while some died on their travels. Most importantly, the words of a certain youth caused much panic in the human world. It was a time of little warmth as nights in the capital were frequently accompanied by gusts of wind and rain, and it would be covered with snow during winter. Such were the days…

- Description from Novelupdates

Kyros was no hero—nor was he a villain. A pragmatist to the core, he turned Earth into a chessboard of chaos, bending nations and empires to his will before meeting his end. But death was only the beginning. The Devil intervened, pulling Kyros into Hell with an irresistible proposition: a second chance at life in a world far removed from Earth—a world named Neva.In this fantastical realm of knights, nobility, magic, and divine power, Kyros becomes the key piece in a wager between God and the Devil. Reborn as Rasmus Blackheart, a disgraced young noble, his task is clear: unleash chaos and topple the order of Neva, just as he did on Earth. But the Devil has added a twist to the game—he’ll serve as Rasmus’s companion, not as a guide but as a mischievous, manipulative force, more likely to hinder than help.Navigating a world brimming with intrigue and divine interference, Rasmus must survive, scheme, and rise from ruin to reshape Neva in his image. Will his cunning be enough to outwit his foes—and his so-called ally—or will this chaotic partnership lead to his downfall?

To Producers, the two of them couldn’t be more drastically different voice actors.