God Emperor - Chapter 612 - Ice Demon

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

Beneath the peaceful façade of the modern world, an undercurrent of shocking crimes roils in the underbelly of society.

“Kill Hamyuts Meseta”

A story about a world where all dead people become “Books” and are housed in a Library. The boy named Colio Tonies had his memories taken and a bomb transplanted in his chest. His life’s purpose is killing the world’s strongest Armed Librarian, Hamyuts Meseta. But, one day he gets his hands on the “Book” of a beautiful princess and falls in love at first sight. Furthermore, that love will cause Colio to get involved in a grand scale battle…

Our protagonist, Xu Yi, is born with a silver spoon in his mouth, able to live a happy and worriless life. However, he wasn’t able to enjoy this life for long, as the revenge of his family’s enemies quickly caught up to him.The enemies are much more powerful than Xu Yi; therefore, he has no choice but to be obedient. However, forbearance is not always a good policy. The enemies take advantage of his passiveness and bully him even more. These little sparks of anger have finally become an uncontrollable fury for Xu Yi, compelling him to seek revenge.