A red haired hero changes, and the fate of humanity becomes unclear. This is his journey (sort of) (Has crossover elements)

On Ragnarök, prophecy foretells that the Aesir and the Jötnar will do battle against each other for mastery of the Yggdrasil. It is also foretold on that day that the battle between Thor Odinson and Jörmungandr Lokisson will shatter the branches of the World Tree, sending its sundered limbs adrift into the river of time, into the worlds of strange powers never before seen.

It's the closure of the Yggdrasil and Maple can't help but feel sad, her friends, they said goodbye to her after having a farewell party earlier, but only Maple in the guild house stays until the end reflecting on everything she lived, about her great adventures and above all, what she will never be able to forget is that supreme rival Momon and his great guild Ainz Ooal

The world Star King Dragon Veldanava created was supposed to get a small unassuming slime with great potential. However, fate seems to be whimsical sometimes and gave the unprepared world a vast dungeon full of beings, both wondrous and terrible. Nazarick, knowingly or not, is bound to reshape the very foundations of the world.

A person is sent to another world as a stock Dominion Authority, and while certainly strong, they are nowhere even near the fringes of the top.

Ainz in the FGO! Will it be a challenge for him? (Spoiler: No). No roflstomp, no hate, no bashing. Just the pure Ainz magnificence in play. It's actually a FGO-fic, but since there are plenty of FGO-fics in the Fate-general category - it was made like this.

Ainz Ooal Gown the ruler of the multi-verse, the sorcerer king and the death king is on top the world. but long ago he was Naruto a pathetic loser who was betrayed after a successful Sasuke retrieval mission now he returns to his old world bringing his hole army with him for vengeance.

Naruto was given two new lives after saving his world, one as a regular worker to an almighty being with an army of monsters ready to attack his command. With his fellow skeleton comrade helping him, perhaps being a ruler might do something right for this corrupt world they were sent to by some odd reason. It's time to show this New World, what old shinobi can do.

A practical joke left behind by his dear friends has left Momonga with a body, now he has to deal with the fact he is in a new yet, familiar world where people seem to mistake him for someone he is not. A supposedly, Boy-Who-Lived, who disappeared many years ago. Now, Momonga has to deal with crazy people, depressed family members, obsessed guardians, and a rather angry Dark Lord.

During the End Times, a group of survivors fled to another new world the surviving gods managed to make but it's heavily implied they didn't make it or is it? Because that new world they fled to is…well the New World. Now, Ainz Ooal Gown has appeared in the New World which is now the Ninth Realm, and is now in contact with the Mortal Realms. Adopted it from GhazzgullThrakan.

The world of Fairy Tail is on the bring of changing, a mysterious person and a Guild from nowhere just arrive. What will be the destiny of the world?

Running Nazarick has never been an easy task for anybody, much less Ainz. But if he thought ruling over his NPCs was hard, now he has to deal with actual legends given form, some of them who even tried to destroy humanity once. Add to that, the New Worlds' difficulty skyrocketed for some reason, so our lovable Overlord has his plate more than full at the moment.

Side-story to DxD Overlord. Issei got murked during Rating Game against Riser Phenix, and swapped places with Momonga during YGGDRASIL's shut-down. What happens when a brutally honest idiot is placed in charge of a den of cunning monsters?

Nazarick aren't the only new arrivals to the new world. A portal created through unknown means has linked the city of Tokyo to the Great Forest of Tob.

As the Countdown of Yggdrasil's Termination starts ticking down. So does the life of a terminally ill girl, whose parents are members of Ainz Ooal Gown. Her fate was sealed on the day Yggdrasil would come to an end. But when transported to the New World, things change when she gets a second chance as her gaming avatar. How will she fare in the New World? (Renewal)

This is fanfic of the Overlord Anime/Manga. I don't not own either. Ainz Ooal Gown wasn't only player to get sent to the New World.

Nazarick is transported to the world of heroes and villains. A world where superheroes are real, and villains as well. In all this, Suzuki Satoru, or as she is called. The supreme leader of the great guild of Ainz Ooal Gown, would have to do her very best to blend in this strange, but familiar world. Would she be a hero? Or a Villain? Or both?

(Sample Desc) and No.9

In an age where love and peace are non-existent, in a land where men never knew true love and affection, it takes one action to start it anew and bring peace and love to the world. And probably lots and lots of debauchery along with it. (Overlord with MGE elements and Mamono)

This is my first DXD Overlord with Issei and his own Guild in the land of Overlord and preparing to ‘conquer’ the new land in the name of Diablo, the leader of the Eden Guild.

Japon del siglo 21 es transportado por accidente en lugar de jugadores por el emperador dragon ya que se equivoco por el flujo de tiempo y por la marca de energia parecida ya que la primera version de ydrassil fue hecha en el siglo 21

A Gate opened in a certain world, one world where Mankind is hunted down, weak, limited. A Gate opened, welcoming an Imperium, where Mankind is also haunted, but one where humanity is willing to face the monsters that surrounds it. Two forces, each one totally opposite to the other. And in the middle of all, innocents who never thought this dread fate could fall over them.

What If All Of Nazarick Ends Up In A World More Dangerous Than Themselves (I Own Nothing)

Ainz Ooal Gown, or rather, Momonga got Isekai'd into Tokoy-3 during the first Angel attack, and got punched in the face by EVA-01. Things... escalated somewhat.

Thousands of years ago the powers of man defeated an ancient darkness to extinction. What now lies in present is a contrast to the heroic age of knights and brave warriors replaced by houses of bloodlines playing the Game of Thrones. But what if something differently arrives in the horizon? What if... an otherworldly presence enters the fray upon the stupidity of man?