The World's most Overpowered Side-Character - Chapter 249: A Promise.

Enter Kazuya, a boy who never had any memories before his adolescent life. He was summoned to the world of Edea wherein the final battle against the Demon King, our hero entered the last room to find a welcome he had not been expecting. An unguarded, unarmed demon king who greeted him with manners and etiquette.As if a respectful and well mannered final boss wasn't shocking enough, he was then introduced into an elaborate plot to exploit summoned heroes. Unfortunately, our naive hero chose to trust his companions. He underestimated human greed which led him to suffer alone in darkness for a time he himself does not know how long.When he suddenly woke up, he saw himself as a child back on Earth. As an amnesiac, he had been thrown into an unknown part of his life. What should he do? What about the people who betrayed him?Follow along as Kazuya finds out about his past and tries to prevent the tragedies he's experienced while trying to change what he knows what will happen in his future.Volume Guide:I - From the Ashes. (Learning about his life before he lost his memories)II - Divergence. (Changing the future)III - The Two Heroes.IV - Edea and The HeroV - ???VI - ???VII - ???VIII - ???

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.

- Description from Novelupdates

As monstrous invaders ravage the world, Ryzen Kael— a man shattered by a tragedy ten years ago— faces his final moments. But just as death closes in, a mysterious system awakens within him, offering a path beyond his limits.Now, with nothing left to lose, he steps into a dangerous journey of survival and power, defying fate and unlocking abilities beyond imagination. Follow his rise as he challenges destiny itself, carving his name into history!Author's other storiesThe Unrivaled Holder: Rise of the Dragon Monarch - 3rd Season Ongoing

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.___This is a translation. All rights to the original content belong to their respective creators.Original Author: 王炸炸Original Title: 火影:我是大蛇丸Cover Pic: By Blueorca, let me know in the comments if you want me to take this down.___Support me on patreon for 60+ Advanced chapters: patreon.com/Blownleaves.