A new college student named Jo was on his way home until he got killed by a speeding car and now has been reborn as a ten year old boy with incredible dragon powers while finding himself in another world where there are powerful women known as Demon Lords and other types of races as he will go on an adventure to see this world to help make it a little better while getting a harem.

(NE)John is a self-made transhumanist multi-billionaire, but while he is visiting an old friend he is dragged in a dispute between powerful and beautiful supernatural women, while dark powers in the shadows wants to put an end to his reign. but they better be ready, because there is no obstacle that a Transhumanist can not overcome. M-rated for violence, swears and sexual intimacy

What if Sam had a childhood friend met once and was never seen again until he was investigating a demon sighting. And What if Sam finds out that his childhood friend is the Demon Lord of Envy?

Me in Highschool DxD

Soma Cruz was your everyday teenager, even if he went to the church more than he technically should, but unknown to him, he is the reincarnation of the Dark Lord Dracula, both the forces of Heaven and Hell want him for their own ends, while he himself can do nothing, fortunately he has a protector, downside? She is an Angel turned Demon Lord.

Triple Crossover: Fairy Tail, Dragonaut: The Resonance, and Seven Mortal Sins. Raiden Oni-Ryu has suddenly found himself being in Hell with former Arcangel Lucifer and he unleashes his Demon-Dragon Power. He decided to go on an adventure to conquer Hell itself and seven sexy she-demons while battling against forces from both Hell and Heaven, and other supernaturals. Harem. Lemon.

With each Civilization, the Lord eventually calls both a Savior and Destroyer from among mortals, and they along with the Seven Mortal Sins and Heavenly Virtues of their age, determine whether their civilization will thrive for centuries or fall. Every time except once has the fall happened, and that one time was due to a Mediator, wielding Excalibur bringing both groups together.

In the second battle against michael and the heavenly virtues, the sins and chroma were about to win until michael in a last ditch tryied to escape but lost control of her portal sucking Chroma, Astaroth, Beelzabub, Maria, Leviathan and michael in. warning this might contain other elements from different anime and shows.