Lord of the Time: I Can Reincarnate Infinitely - Chapter 142 - - Magic Boulder

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.

The end of the world is coming, the world has undergone great changes, and everything has changed. Plants, animals, and even insects, as long as there are living things, have mutated.
Become more powerful, and even evolved supernatural abilities, such as chickens and ducks that can fly to the sky, such as cats and dogs that can breathe fire.
But only humans, without any obvious changes, seem to have fallen from the top of the food chain to the bottom of the food chain overnight.
Any creature that can open its mouth to eat can treat humans as food.
But fortunately, this world has not completely killed humans. Gradually, humans discovered that they had the ability to cultivate compatibility with other creatures.
As long as it has a high degree of compatibility with some powerful mutant creatures, it can be used for its own use to achieve the purpose of protecting itself.
Fang He is a person who is very compatible with mutant animals, but it is also because of his ability that he has changed from the strongest to the stupidest.
Fang He, who was reborn, said, “Hmph, this time…”

- Description from novelbuddy

Luciel strived to survive in a world that was suddenly plunged into chaos by monsters. Unfortunately, the base he was staying at didn’t survive the monster tide. So, after surviving in such a world for 7 years, he died.Luciel thought he had died, but when he opened his eyes, he was met with peaceful modern scenery.After looking around, Luciel laughed with joy and said, “Ha ha ha. I can finally enjoy such peaceful scenery again! No more eating expired food! No more sleeping in the open space! And there is no need to fight daily! To whomever brought me here, thank you very much. I will enjoy this life to the fullest!”He also woke up in the body of a male model who had just signed to be the contract lover of their boss.“Hmm, $5 million and a house in the capital as a separation fee, and $100,000 as an allowance every month. The boss also has a handsome face. Ok, no problem!”Luciel did enjoy his peaceful life for a few weeks, but afterwards he found out that the world he was in was the apocalyptic novel he read in his past life.He didn’t want to live in the same way as his past life, so knowing that he was the lover of the protagonist who died in the first chapter because he ran away, he decided to stay and rely on the protagonist.Luciel just wanted to rely on the protagonist to have a better life in the upcoming zombie apocalypse. However, he was forced to deal with the people flocking around to rely on the protagonist, and he was even forced to fight again just to save him.“Hey! I just want to rely on you! Why do I need to deal with a lot of things?”“It’s not my fault that some things happened.”“What did you say?”“Don’t stare at me with such a cold look. Don’t worry; you can continue to relax and just rely on me. You don’t need to care about anything else, as long as you care about me!”“Huh? Are you still dreaming?”

A fighting genius.