After Cybertron was lost, a squad of Autobots are sent out on a mission to find a suitable world for their kind to call home. After years of searching, they accidentally found the perfect planet, a planet called Earth. With the aide of a young man named Kenta, they'll deal with threats that are supernatural, but also threats from Cybertron itself. OCxHarem, Autobots x Small Harem

When things were starting to look monotonous for the Hyoudou Household & its inhabitants, Issei, Rias, & co. find themselves in a situation when they arrived at Kuoh Academy, the ORC building seemed to have been hit by meteors, only to find a bunch of robots lying about. When they awaken, the group find themselves a part of the endless conflict between the Autobots & Decepticons…

Optimus Prime always has been and always will be a hero when Cybertron demands it, but when his home world no longer needs him to save it, the time has come to enjoy life as it was meant to be lived. Thus Orion Pax is born in the human world and now seeks a new goal in life. He may be burdened with loss and regrets, but that's all the more reason to live. He can still do good.

After surviving an assassination attempt that cost the lives of his loved ones Jack discovers he is the wielder of the Boosted Gear and sets himself on a path to become stronger so he doesn’t lose anyone again. Set after the end of Transformers Prime and before the start of Highschool Dxd. Jack x harem.

It's been three weeks after Jack won the tournament Jack finally starts to marry the girls in his harem and finds himself once again facing his rivals in rating games while new and old enemies slowly emerge from the shadows.

Humanity is not alone. There are gods, demons, dragons, and everything else in between. And then there also those from more distant places, and distant stars. These are THE TRANSFORMERS and they are more than meets the eye...

It is only Logical that Shockwave wouldn't let Megatron's disbanding the Decepticons let him down. He was a scientist and creator at heart, so when he travels into the world of Devils and the Supernatural, he has so much more to create and learn than in his own universe. Beware, DxD, Shockwave is here.

Ever wonder how did Jack gains his peerage? How did the autobots discover that he wasn't human? Or how he gained a massive harem? Well you won't need to wonder anymore because in this second and final prequel all of your questions such as the ones I just stated will be answered.

Set around before volume 1 and all the way to volume 21. Watch how Jack became a devil and see what his experiences where before he meet the autobots and returned to the United States. Please note that this is a prequel.

Grimlock the dinobot though to have died in the space bridge explosion was actually sent to the earth of dxd. can the dinobot leader survive in a world full of devils angels and fallen angels.

There's more than meets the eye behind Kuoh Academy. In a world of Devils and Angels, a species most revered enters the equation! Meet the Autobots, noble warriors stranded by exodus from their home. They too, assimilate into the human world. But their enemies, the Decepticons, aren't far behind! When their war begins anew, will Earth be able to survive the conflict?

Just when his victory slipped away, something unexpected happen the Megatron along with two of his most loyalist men. The three got transported to another world and were now humans. Will they continue their goal of conquering or will they find something more meaningful than power?

Join Jack as he and his peerage fight in a rating game tournament. The winner will be given enough points to get them a spot in the Top 10 in the rating game. Will they win or lose? If you don't like the story then don't read and remember to review.

In this story series Jack Darby was born the red dragon emperor and became Rias servant. Stronger, smarter ,slightly perverted Jack x massive harem. This story is set after volume 22 and predacons rising. The series will also contain some other crossovers. If you don't like the story then don't read and remember to review.

A Warmonger, A Tyrant, A Monster, A demon, A devil. Megatron was many things... But now he is stranded on a world he once tried to conquer, as one of the being he saw as a pest. But he should know better than anyone, that there is more to Humans than meets the eye...

The Autobots had lost the war and were exile from their home. They are being killed off one by one by the Decepticons. Suffering from so many loses by the decisions he made as leader, can Optimus Prime gather the remaining Autobots with his new allies and end the reign of the Decepticons or will he fall like his fallen brethren?

Optimus Prime (a.k.a. Orion Pax) never would have guessed his new life would turn out like this, sure he could deal with being in a human body, sure he would feel indifferent knowing that demons and angels are real, and fighting is something he can easily do, but put him in a situation with romance and he is just helpless. HumanOptimus/Harem and FemIssei.