Chaos Devourer System - Chapter 8: Detected by the Base AI

At the end of the world, a legendary hero gave his life to save a dear friend, only to be reborn as a four-year-old orphan with 'Crab Affinity'.The apocalypse has come and gone, claiming humanity with it. All humans have had their 'Souls' stolen and claimed by monsters - vampires, demons, zombies - you name it.Reborn as Barnacles (Barns for short), the once-legendary hero claws his way back to strength under the tutelage of the gluttonous King Crab, a sentient crustacean with more vice than virtue in his shell.Follow Barns' journey as he rediscovers his power of rebirth, which when combined with a little 'crab magic' has the power to reset humans back to their original selves.It's time to take a crack at resetting the apocalypse.

Our protagonist Caam is a man from Earth that was reincarnated into this world as a demon. In order to survive, he spared no effort in avoiding the sparks of battle and without noticing it, he became strong himself.

Sealed Kaguya;Mikoto on her wedding night;Kushina during the Nine-Tails' Rampage;Kidnapped Konan...Uchiha Kage, who crawled out of the pile of dead bodies from the night of the clan massacre, discovers that every night he can enter a mysterious space.The space not only contains real female ninjas, but also real instances that update from time to time.Furthermore, by absorbing the dropped ninja fragments, he will also gain the abilities of the corresponding ninja.Crap, it's like I've started playing in the real Naruto world!You say I'm inherently evil?That's right, from now on, I am the most evil Uchiha!I'm going to make Konoha... No, I'm going to turn the entire ninja world into a paradise that belongs to only me!——Sasuke: I treated you like a younger brother, but it turns out you're my dad?Naruto: Awesome, Sasuke! Turns out we're actually blood brothers!

After a tear in reality pulls Kagari Shuya into a white room he discovers a futuristic interface for reincarnating in a different world. After looking through the different races and skills he unlocks a new race, Lucivault, a type of vampire with none of its characteristic weaknesses. All set to start his life in a new world, Shuya is confused to discover that he is enveloped in darkness. As it turns out something went wrong when he was transported and instead of appearing where he was supposed to, he appeared in an underground cave. Shuya faces untold dangers, runs for his life, before finding his way out of the underground world. After escaping he meets his Shishou and begins to learn to fight with a spear. There is also a cute black cat named Rollo.