One Piece: The Devil Fruit Collector - Chapter 38: The Dead Must Make Way for the Living!

His mother kidnapped by the Ice God Pagoda at a young age, Nian Bing grew up travelling with his father, avoiding pursuit. One fateful day, he was forever separated from both his parents and inherited two immortal treasures from them, the Ice and Snow Goddess’ Stone and the Flame God’s stone, allowing him to use ice and fire magic in harmony, a feat unheard of. Taken in by a former chef of legends, once known as the Demon Chef, he creates legendary cuisine while walking the path of vengeance!

- Description from Novelupdates

In a world teeming with Titans, Colossals, Gigantic Monsters and Kaiju's, Erian who reincarnated makes his living collecting scraps of low-grade Defective Genetic Serum, realised he transmigrated along with his system.

Follow Erian as he grows to become the strongest Disaster Grade Titan with the help of his Titan System!

“Noob. Weakest. Hardstuck .Tryhard. Trash. Pick a word, it fits me.”In a post-apocalyptic world overrun by monstrous creatures known as Eaters, some humans give up their humanity to gain a powerful weapon fused into their right hand. These people become Eater Blades, warriors who must hunt and feed their weapons with Eaters to rise through the ranks and prove their worth.In a world where rank means everything, Johnquis remains unranked.Why? Because his weapon is a chain. Everyone laughs, calling him “Leash Boy.” They mock him, never realizing the truth. That his chains aren’t made to cut… they’re made to control.This is a world where zombie-like monsters evolve, and a strange game-like system controls everything.Grind, rank up and evolve.Watch how Johnquis changes the game and tames the apocalypse.

The happiest thing in the world is to be able to amend what you have done wrong. She who acted willfully because of a game, was reincarnated into a time when she still had her parents’ love.