From Today, I'm a Player - Chapter 282. Side Story – Heimdall Pt. 2

Ryan «Quicksave» Romano is an eccentric adventurer with a strange power: he can create a save-point in time and redo his life whenever he dies. Arriving in New Rome, the glitzy capital of sin of a rebuilding Europe, he finds the city torn between mega-corporations, sponsored heroes, superpowered criminals, and true monsters. It’s a time of chaos, where potions can grant the power to rule the world and dangers lurk everywhere.

Yoshimura, a average guy, no more ordinary than the next guy, worked in a company and lived a simple life surprisingly had an unexpected death and died.Fortunately his last days were spent spreading happiness around him which spotted him a place at a certain higher degree of power which gave him one extraordinary thing.One Wish, Any WorldSo seeing the generous and crazy offer, Yoshimura, like any other chose to be reincarnated to his favorite novel 'The King's Path' and was successfully reincarnated too.Unfortunately not in the right body.“What! I am now in the body of the second villain that would be trampled by my favorite protagonist!”“My Beautiful Fiance, a heroine is preparing to invade my place!”“My Step-mother seized all of my properties!”“My Bodacious Maid looks at me strangely in my sleep!”.........“Just how much am I fucked?”....................Well... at the very least I know what will happen later.And the goddess gave me the best talent.[ You have been gifted 'Eyes of Eternity' ][ Sealed Potential Unlocked : Black Hole ]......Wait a second!......................This is my second book.But think of it as my very first because... I'm not that fluent at English, hehe. So please endure the whatever third-rate world grammar I am going to write.

A data loving young man from Earth has an accident which transports him to a dark land filled with terrifying creatures and magical powers. Fortunately for him, he has a Biological Assistance Chip to ease his path. However, things in this bizarre and strange world are not always as they seem, and, though it is a tremendous asset, the chip doesn’t always work as expected. With all of the crazy creatures and magical mayhem around him, one can only wonder what the future holds for this young man…

- Description from novelupdates

Waking up in the body of a 6-year-old boy a few years before Cintra is destroyed, Madara receives a system that gives him the ability to gain the powers of Uchiha Madara.[The peak of Uchiha Madara's system is before he becomes the ten-tails jinchuuriki.]The system's percentage does not stop Madara's power, but rather the system's release. After all, I don't want to see a character who goes around killing everyone from the beginning of the story.