When Emiya Shirou chose to give up and allow himself to be consumed to stop Gilgamesh from escaping destruction, he never expected to find himself in another world. Now in a world filled with demons and terrorized by a Tyrant, he has found a place to fulfill his dream of being a hero and saving everyone. It's just a shame everyone he's saving is completely insane. On Hiatus

Emiya Shirou always thought his family was dead, so when Kiritsugu died he always thought he was alone. Then he met his sister and learned he wasn't even native to Earth.

An Disgaea Overlord insert in dxd, where the protagonist introduces Disgaea demons as a faction in the setting, along with Disgaea's bs power levels and mechanics. Takes place in the time of the 3 waring factions. Crossposted from QQ.

When the real Zenon seals off her own powers and reincarnates, a portion of it splits off and creates a shadow of her that descends upon the world of DxD.

In a Netherworld where all major cities were mobile bases, a dimensional anomaly was detected. Under the other Overlords' orders, this Netherworld's Overlord investigated and found a world full of horny monsters, idiots that didn't know basic hygiene, and hot girls who never heard of modest clothing. Oh well, time to shove the work onto the expedition team!

Following the end of Dimensional Gate Screwover, Nelius finds himself in an all-new world, one beset on multiple sides by all sorts of troubles... but those may prove paltry to the events yet to come. Currently rated T for violence and language. (Updates will be slower due to RL events)

Nero is sent on a mission to capture Dante and to defeat Overlord Zenon to break his curse over Veldime, but what he never expected was to meet Zenon's daughter, Rozalin instead and on top of that she claims that they're engaged. Now Nero has to face new challenges as well as finding out more about his past and the legacy that hides within him.

On the worst day of Izuku's life (Thus far anyways) He meets some one who changes his life forever... but its not All Might.

Win a Great War, beat a stingy Goddess and knock some sense into a former emo teammate is what Naruto had in mind before looking forward to peaceful days. He wasn't expecting to bleed to death and be told that he's going to another world where crimes are a demon's daily activity in order to face an all powerful Overlord who goes around taking down other overlords...nothing new.

A one shot that wouldn't get out of my head, Unlosing Ranger VS Darkdeath Evilman happening in DxD with HAM, CHEESE, HEROIC SPIRIT AND SPIRAL POWER!

Within death, Naruto expected the Pure Lands to be a little bit... Better than what he was seeing. It was weird to think that his parents were here but then the now penguin-shaped ninja found himself under the care of an odd man. No, a DEMON. A kind, virtuous, demon, weird. This man gave him a place of employment to pay off his sins, this King Krichevskoy, dood! Naruto x multi.

When a prophecy from the Dark Assembly told her to build an army to defeat Senator Kimura, Kagura decided to build her own army while dealing with Evil Academy shenanigans. Do note that this is more of an AU than a crossover, but I have to manage

The Tale of a Lost boy and a Lonely God and their adventure throughout the multiverse.

Killed by Jiraya and stuck as a Prinny thanks to the fox, Naruto must deal with the madness of the Netherworld. Worse still, a servant of Laharl's! Will he earn the right to reincarnate without being driven insane by the hijinks and misadventures around him first? Only one way to find out, Dood! (Reviews welcomed and encouraged!)

Nephalem, their are stories about these beings that so rare they are considered myth & legends amongst the denizens of Celestia and the Netherworlds. Beings so powerful they could decimate any world that they so choose. But they are just myths & legends, not one has been seen in tens of thousands of years. Until now.

After a race of strange yellow cats made their appearance in Laharl's Netherworld, it became clear that it was only the beginning of the madness. Soon, demons from other world began to show up, some helpful and others hostile. Hilarity ensues. Rated M to be safe, with individual content warnings in each relevant chapter, but otherwise, expect content fitting for a T rating.

its simple ryder and the paw patrol find themselves in the netherworld and ryder becomes a student of netherworld academy and with the help of his new friends and his team he becomes a overlord and contains a mix of characters from disgaea games and m for future chapters

Nephalem, beings so rare that they are considered myth amongst the denizens of Celestia and the Netherworlds. Beings so powerful they could decimate any world that they so choose. One has not been seen in tens of thousands of years, until now.

Two summoning circles, a lonely boy, demons, angels, and a newly FUBAR fate. This will screw up many plans. (description and rating to change) HP/oc/oc

In the Academy, Sakura gets her hands on a summoning-contract. One that let's her summon prinnies. Things change. (Cross-posted on AO3)

Taylor learns something about her mother and meets a cousin she never knew she had after awakening to a certain heritage. Story unbetad and written by the seat of my pants, rated for language.

For once, Jack Spicer was able to get to a Shen Gong Wu before anyone else. Unfortunately, activating said Shen Gong Wu lead to unprecedented consequences. Well, if he can't return to his own world, might as well take over this one! ...He quickly realizes that'll be a lot easier said than done when he learns it's a world full of demons.

Nero is sent on a mission to apprehend Dante and to defeat Overlord Zenon, but after a failed ritual he ends up being bound to Rozalin, Overlord Zenon's daughter, who claims to have known him in the past. Watch Nero unlock the secrets of his family's past and fight against Overlords and other demonic forces.

Laharl has found a way to cross into other Netherworlds at will, and plans on conquering all of them. However,his plan changes when instead he finds himself in Gensokyo.

When Shinjiro Aragaki died, he didn't go to Heaven or Hell, but to Evil Academy. In this mad world, he'll have to fight against and alongside demons for a second chance at life. But can a single Persona user defeat the monsters lurking in the academy? The full moon approaches, and the true battle with it. Collaboration with Mirai666.