Martial King's Retired Life - Chapter 28Book 14:

[ Vol.3 ] Lucius “Lucien” Cronus—a titan of time, innovation, and power—stands at the peak of a world he reshaped with genius time-fueled ambition. Yet every triumph is hollow, every bond an echo—because none can replace those he’s truly lost. When faint disturbances ripple through time, Lucien’s obsession reignites, pulling him toward a confrontation no invention can stop—and a fate no one can escape.[ Vol.1 ] Ren, a young clockmaker’s apprentice living in 1868 Japan, begins to experience strange visions—glimpses of people he’s never met and lives he’s never lived. When a girl from an elite family speaks words he’s only heard in dreams, Ren is pulled into a mystery that stretches beyond memory and time. As dangerous spirits appear and reality begins to shift, he must uncover the truth behind his visions before everything he knows begins to slip away.

In a monstrous post-apocalyptic setting, this is a story of how a lowly Inventor, Lance, conquered a nation governed by immoral group of Scientists called The Corporation. He grew and climbed up to the highest rank possible as a Scientist with his inventions and side businesses. Eventually, he became a weapons inventor, building weapons to two opposing sides. In doing so, Lance always crossed a dilemma. How could a nobody topple the most powerful government? How could one overcome circumstances beyond his grasp, especially in a world filled with monstrous mutations called the Abominants?

Gripes have their origins and debts have their creditors. We haven’t crossed each other in days past or present, nor formed any grudges. I am but duty-bound to carry this out, so apologies in advance!

In his past life, Yang Chen was a gentle person who was oppressed for his whole life.

Now that he’s reborn, he chose to become an executioner and severs ties and grudges with his executioner’s blade, killing all that climb onto the Immortal Executioner’s Platform!

Heads will roll! Humans’ in the human realm, demons’ in the demon realm, devils’ in the devil realm and immortals’ in the immortal realm!

- Description from novelupdates

The protagonist, a famous YouTuber known for playing the game trilogy “Tril Trilo Trilogy,” finds himself possessing the final boss of the game world.Before the release of the new instalment in the series, he receives an offer from the game’s developer to play a prequel, “Part 0,” which explores events that occurred before the first instalment. Since he is a fan of “Tril Trilo Trilogy,” he eagerly accepts the offer.However, through some twist of fate, he wake ups in the world of “Tril Trilo” in the dreadful body of the final boss of the trilogy, a character named Frank Wonderstein.