Rimuru chooses to return to the past even if he has to erase what he already has to make a better Tempest kingdom than before. Just so he can have even more friends and loved ones then before that he lost, or was not knowledge enough at the time to help grow and become better along with himself and his nation. He also does it so he can make it so paperwork is someone else's problem but he will never say that. Little does he know that doing that gives him an even worse daily activity to deal with... Rimuruism

Rimuru Nava, the right-hand man of the 'Star King Dragon' Veldanava, died while battling the 'World Destroying Dragon', Ivarage. However, he would soon reincarnate as a slime. How will his journey now go, as he is reduced to having less than even a tiny fraction of his true power? What would happen if Veldanava finds out about his reincarnation? And will the Central world remain the same as before? I do not own Tensura (LN). This is a rewrite for Rimuru: Veldanava's Right Hand. Some characters (especially Rimuru and Velda) would be OOC.

Ten years after the end of the Great Tenma War, the world is finally at peace. Rimuru Tempest has become something beyond comprehension-a godlike being with uncountable power, unlistable skills, and a divine weapon forged from Genesis-class blades. And yet, buried beneath his calm smile and mountain of paperwork lies a quiet, aching regret. He couldn't save Shizu. He couldn't reach the Ogres in time. Despite all he's built, those moments still haunt him. But when a single question leads to an impossible answer, Rimuru realizes one thing: With his current power, even time itself is no longer a limit. Now, Rimuru travels back to the past-to rewrite his story, save the people he loves, and create the perfect future he once dreamed of. This is a story of second chances, deep regrets, and a god who still carries the heart of a slime.

It's the Restart of the Old Book and as before It Will Primarily be Short Story, React, Short Crocssover and Oneshot. And My Au Part

After dying in his sleep, a modern-day anime fan isekai as a child, crewless Monkey D. Luffy. No crew. No Haki. No Gum-Gum fruit... yet. Just pain, awkward child limbs, and a system that turns life into a grindfest. Then the Partner System kicks in. To grow stronger, Luffy has to power up others first, because apparently being the main character wasn't hard enough. Each buffed-up partner boosts his own stats and unlocks powers from across the anime multiverse. Fairy Tail magic? A one-hit kill blade? A soul-cutting sword that speaks? Absolutely. Now armed with grindable friendship, hellish Garp training, and a suspiciously game-like UI, Luffy's ready to recruit his way to Pirate King. A dark, reimagined One Piece universe.