I CHOSE to be a VILLAIN, not a THIRD-RATE EXTRA!! - Chapter 42: Blade of the Sword Saint

A story of Gin, a young man who lost his memories before the age of 17 and became a magician. Living a quiet life running a cafe while researching magic, he is suddenly thrust into an unknown world. Moving between Earth and a realm filled with danger and secrets, Gin must rely on his knowledge, skills, and magical prowess to navigate the perils that arise. Ruthless and determined, he will stop at nothing to uncover the truth behind his lost memories and the mysteries of the world, using every tool at his disposal to rise above all

Join Lu Yin on an epic journey across the Universe, pursuing the truth and tragedy of his past. This is a world of science fantasy where the older generations step back and allow the young to take charge of affairs. Heart-wrenching separations, terrifying situations, all with comic relief that will leave you coming back for more. This is a world where the other characters actually matter, and are revisited frequently as their own lives unfold. Dotting Lu Yin’s path are monumental feats of kingdom-building and treacherous political situations where he must tread carefully if he wants to get to the truth of his history.

Yo, Hi! I’m Frank, I made a deal with a demon to pay me some money for receiving a guest for a few days every week.
I had no idea about what I have done.
On May 1st, Conan ‘the God of Death’ came to my house. I was forced to let him in and we get involved in a criminal case.
On May 8th, Bruce Wayne ‘Batman’ came to me. I was forced to follow him to fight crime.
On May 16th, Hannibal Lecter, The Silence of the Lambs, came to my home. I can only say that I really can’t stand my guests.

- Description from Novelupdates

Gray was just a normal guy. No powers. No family. No future.In a world where strength and status decide everything, he was at the bottom.He worked hard just to survive, taking care of his little sister after their parents were gone.But no matter how hard he tried, life never gave him a break.And after losing his only job, Gray was ready to give up completely.Then something strange happened.Just as about he was to end his life, an unknown voice echoed in his ears.[Welcome to the Great Tycoon System.]And for the first time, Gray had a way to fight back.From being weak and broke, he’ll rise to the top—one coin and one job at a time.Because in the world where money can buy power, Gray is about to become the richest and strongest man alive.