Arknights: The Life Inside - Chapter 15

A lecherous army special task force soldier from 21st-century Hong Kong is selected to travel back in time, choosing to go to the Chinese Warring States Period. Unfortunately, the time machine runs into an error during the experiment. With no foreseeable way to return to the present, he must use his combat skills and knowledge of history to thrive in his new life in the year 251 BC.

As a promise, he went out into the world as an assassin. 3 years later, after becoming the Supreme Assassin, he gave up on everything he had and returned to the ranks of ordinary people. But one day, Kismet, a mystical game created by the National Research and Development had appeared.

Enigmatic hands, spectral frame, and one cunning strike just like the swing of the Grim Reaper. The Supreme Assassin takes on the mystical world, and how his legendary tales sets off, progressively ascending the altar to becoming the best.

- Description from Novelupdates

Calling the old god’s mage, the knight who inherits the bloodline, looking forward to the glory of yesterday;

The noise of steam engines and the roar of cannons indicate the direction of the future;

An Sen, who was living in this world, embarked on a road that had never been imagined;

In the ashes of the old world…he shall be crowned king!

- Description from novelbuddy

In the year 2075, yet another fully immersive VR game New Origin took the world by storm with its unparalleled freedom and virtually limitless play world. This classic yet extraordinary game quickly became a ’second world’ for people, and within just three years, the virtual and real worlds became deeply intertwined. People played New Origin to earn a living, to find freedom, and to escape their hectic everyday lives. Elio started playing for similar reasons. Driven by the eternal flame of an artist, Elio embarked on a journey to experience the true freedom this new endless world had to offer—along with a certain special person. Believing in every creature’s right to freedom, Elio challenged the concepts established in this new world with his companions. Unknowingly, this decision set him on a journey to become the strongest existence in this mysterious otherworld.