Leading the young lady I picked up astray, making her the happiest girl in the world! - Chapter 75 - The Basement Dweller 2

In the Great Age of Pirates, countless people rushed to the sea.

The person who obtained Arceus’ power arrived in this world as the new Arceus and got in touch with the Lunarian race.

Based on the reality that everything can be Mythical Zoan, the current him can also be called Mythical Zoan user.

Whether it is One Piece or Pirate King, it has nothing to do with him, all he wants to do is to retrieve the lost plates first.

During this process, he formed an alliance with Beasts Pirates, a famous pirate crew in the New World, and Mr. Kaido got his coveted Mythical Zoan Army.

When Pteranodon becomes Aerodactyl, when Brachiosaurus becomes Tropius, the combination of Pokémon and devil fruit powers will bring a whole new change to the world….

Lunarian’s glory will surely reappear.

I lived a mediocre life. Trapped in the simulation of everyday mundanity, the 'Matrix' you might call it. The world killed my dreams, hurt my innocence, but I moved on just fine, struggling everyday to keep living.Until it came out of nowhere, without warning: The Apocalypse.I fought to survive. I lived alone in a world where all dead humans turned to undead. But, there was only so little the average human could do against creatures with superhuman strength. So I died. It was the end.Or was it?“From one cage to another.”I opened my eyes to a world where normal reasoning was as good as garbage. A world ruled by men with superhuman strength. A medieval world with swords and... No magic. Just swords and weapons. But still, that medieval world was not so medieval. It was a crazy place, a world that I couldn't fully understand.So I decided. I'll live because I lack the resolve to end myself. I'll live because i'm a coward. I'll live because in the end, I'll die of old age anyway. But before I die, I'll figure out the truth and secrets of this world. Just for the sake of it.And what's the best way to see the world in its entirety? Of course, it's to stand at the highest summit. And that's exactly what I'm going to do. So watch me rise.

I exist in the darkness, disappear under the bright light, and will eventually devour the sun and turn into the shadow of all things… Known by people as the indescribable terror of darkness; the king of shadows; the dark day; the existence of the shadow of the world , is still just a somewhat special high school student, facing a weird death game…

- Description from novelbuddy

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.