A Wild Last Boss Appeared - Chapter 190

Zack “Kazz” Foreman once was a human from the earth when humans went through a dramatic change because of an event. This forced them to evolve into energy-based beings but was sucked into another dimension.

Forced to start living out lives on random worlds in a fractured dimension, Humanity is placed on the path of complete extinction.

This is controlled by a demon king at a place called The Center of Everything.

The Demons try to force Humanity's mark from every reality, so there are only demons, but the Demon King feeds from anger and pain. A constant tournament going at the center of everything to feed his hunger.

Kazz made it to that point once, but was tricked, refused entry to the tournament because he had offed a place one of the gods of the worlds.

Refusing to give up, Kazz goes back to the beginning to start again. To do this, Kazz must give up all of his memories to choke the flow of demons born fully grown from a pool of recycled souls.

This journey starts after he lives a solitary life trying to get stronger but not knowing why. The world Kazz is on is like our earth, but it was only a mimic of the earth we know.

Caught using steroids and about to give up and join the army, Kazz stumbles onto a cave in the ground. He is transported to a world filled with demons and monsters, and a human god named Hero is speaking in his head.

Hero, a person Kazz knew but was not friends with, followed him to help but was lost from him. Upon meeting Kazz, Hero offers him the Hero System to help him advance in this new world.

Kazz refuses after trying to get to the top and failing to use the easy route. This starts a series of frustrating events for both Heroes, but they learn to work as a team over time.

Kazz will meet misbegotten monster girls and demons that he agrees to take care of in this world, using the Ranching System. It only gives bonuses to the girls and skills to help raise them, but he will also learn to control the Elements with Shamanic abilities.

Ron finds himself reborn in the world of One Piece, stranded on a remote island in the East Blue. But he's not just any ordinary child—he’s bonded to a mysterious sign-in system that grants him powers with every new location he visits.At his first sign-in, he unlocks the legendary Sun Breathing Technique, along with a boost to his vitality. From Shitmotsuki Village to Skypiea, Enies Lobby to Marineford, Ron travels the world, collecting extraordinary rewards that make him a force to be reckoned with. The Raikiri, one of the 21 Great Grade Swords, Armament Haki, Observation Haki, and more fall into his hands.As Ron steps onto the battlefield of Marineford during the legendary Summit War, the mightiest warriors—Four Emperors and Marine Admirals alike—pause, stunned by his presence. But Ron merely waves them off, “Don’t mind me. I’m just passing through.”Join Ron on his journey across the Grand Line as he signs in at iconic locations, growing stronger with every step. This is not just an adventure—it’s a legend in the making.

Condition 1: One yellow scarf soldier rune is satisfied

Condition 2: Kill 100 rune monsters independently

Condition 3: 5,000 times of training to kill a pig with a knife is satisfied

Condition 4: 10 Spirit Talisman Pills are satisfied

Rune unlock upgrade.

Your source runes have been promoted from ordinary quality [Yellow Turban Soldiers] to premium quality [Yellow Turban Warriors]!

- Description from novelbuddy

In less than an instant the world as we knew it was at its end. That’s right. The Apocalypse. In a single blink Zombies appeared and mutated monsters began to rampage all throughout the world. Now it was the human species turn to fight for survival and planetary dominance! On the same day that the world descends into chaos we meet Yue Zhong. Initially only hoping to get to his friends and escape to a refugee camp our protagonist sets out, inadvertently building a team along the way. After a series of fortuitous events and a few serious hunches our hero decides it’s time to do more than just survive! Yue Zhong begins to form the foundations of an enormous survival plan… before he suddenly discovers that he has only gotten over the first hurdle….

Unbeknownst to Yue Zhong and company, the world outside of China is mostly a wasteland! Country sized swathes of nuclear radiation and an extreme shortage of supplies in the world after the nuclear explosions was quickly becoming the “norm”. Mutants, Evolved animals and what’s worse, intelligent out of control dinosaurs had quickly appeared and claimed their own sections of the planet. There were several innately powerful Evolved races which appeared that were more than 10 times stronger than humans, nearly all of them possessing bodies impenetrable by normal bullets. The fabled orcs’ were another of these Evolved races, the leader of which had in fact enslaved many of the remaining human beings. Unceremoniously exposed to such a cold and heartless new world, Yue Zhong is faced with a choice: Find a deep dark hole and hope it goes back to “normal”? Or overcome all obstacles and struggle towards Evolution!!!