One Piece: Don't Worry, I'm a Doctor - Chapter 297: Son? I’ll be one right now!

Forty years ago, Gu Hai, transmigrated to a brand new world where the cultivation was no longer fiction but a reality. These are the tales of Gu Hai’s life since his arrival at the Chen Kingdom as he becomes the biggest merchant of six kingdoms.

Rise of the Arms Dealer in the World War tells the story of a man from the modern world, thrown back in time to a pivotal moment in history. Armed with knowledge of advanced weaponry and the sharp instincts of a seasoned weapons dealer, he wastes no time in exploiting the chaos of historical wars and political upheavals.Building an empire not just in arms but across industries, he crafts vehicles, machinery, and technology far beyond the reach of his time. With each calculated move, his influence spreads like wildfire, positioning him to control the tides of conflict.After World War I, he seizes the opportunity to buy up factories and cutting-edge technologies from the defeated nations, biding his time to prepare for the next global war. His eyes are set on World War II, where he plans to sell weapons on an unprecedented scale, shaping the course of history.A villain at heart, he is cold, calculating, and without a shred of principle. He deals to whoever bids the most, indifferent to the consequences. As his empire grows, so does the power he wields, but with it comes a relentless struggle to keep the forces he's unleashed in check.

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

In old times a boy named Luis had lost his parents at a very tender age, he never even got to know who his parents were. With his parents gone he had to be taken care of by his wicked aunt who hardly fed him once a day, in effort to get food Luis was adviced to steal by a strange book without minding the punishment of burning given to thieves. When Luis was caught he ran into the forest and the villagers including his aunt chased him down with torches.

“I think it's best I surrender now” Luis stopped running and was panting now.

“I think I can see him!” he heard the village blacksmith shout.

He took a little step backwards and down a hole he went.

“Noooooo!!!” Luis screamed as he went down the hole, the last thing he saw was a red glowing light and then it was lights out for him.

“What happened?” Luis groaned. “Where am I? And why is my body so cold” he said touching his arm

A screen appeard in front of him.

[ System revived ]

“What?”

That was where the true journey began.

Now the fate of mankind lies in his hands as he keeps completing tasks and quests to get stronger.

Luis keeps getting stronger but the question is:

Will he be able to stop Lucifer?