Ben Tennyson famous superhero is thrown into a world full of assassin's and monsters. Seeing how corrupt this world is realizes that he can't be a hero anymore so he casts off his hero ideals and joins Night Raids cause in destroying the capital.

In the world of My Hero Academia, where humans all started developing abilities beyond the norm of humanity, having powers is everything, and the dream job of every person's wildest imaginations become real.. Super Heroes. Ben Tennyson however, is quirkless, one of the few 'normal' humans to still exist, possessing no super powers to speak of. That all changes however, when a certain device falls from the sky...

You'd think that in a world filled with Super Heroes, aliens would be a normal thing. Heck the romanticized version of heroes from old comics has always been that of alien heroes falling to Earth as babies. But not in this Quirk Based Society. Ben Tennyson, aspiring hero student at UA Hero Academy and wielder of one of the most powerful devices in the Galaxy, The Omnitrix, now has to deal with the fact that the nature of his power isn't a secret anymore. His adopted family plagued by reporters, he can't even go on a proper date with Kyoka Jiro. And with tensions on trusting UA's public relations already at a low point thanks to the USJ events and the League of Villains, Not to mention the secret organization known as the Plumbers revealing their hand, things are set to come crumbling down on the Hero in Training. But Ben's got several things on his side. His classmates, his girl friend, All Might, a bunch of super powered alien forms, and witty sarcasm.

A 3rd world war seems to be looming on the horizon as somehow, the world all seems to be turning against Academy City thanks to the influence of the Roman Catholic Church. Touma Kamijou and Index are both sent to Avignon, France in order to help destroy an artifact being used by the Catholic Church to turn the world against the Science Side and cause war. However, they disappear soon upon arrival.. and Ben and Mikoto step in to search for them. Things get more difficult however when Vilgax makes a surprise visit to France.. and Ben finds himself facing another member of God's Right Seat, Terra of The Left, while Mikoto is left to fend against the mysterious Malware, a being born of Tree Diagram and the DNA of Upgrade. The world seems to be turning further upside-down as the occult, science, and what lies beyond our planet get mixed in a titanic showdown.

Academy City. A large city in Japan that is comprised completely of research centers, colleges, high schools, middle schools, and elementary schools. 81 percent of it's population is comprised of students while 60 percent of students are super powered psychics created through Academy City's power development program called Espers. Mikoto Misaka is the third strongest Esper out of that 2.1 billion that dwell in Academy City, being also a prestigious student at the most high class all girl's school in the entire world. Naturally, having such high powers, she has faced many weird phenomenon within the city known for the weird and scientifically advanced. However.. her knowledge about the universe is challenged when she meets a particularly weak esper named Ben Tennyson, whose been living on the streets because he couldn't afford the dorm. And as Mikoto will soon discover.. Ben's true powers.. completely unrelated to his esper ones... are quite out of this world...literally.. ( Also known as とある科学のオムニトリックス Toaru Kagaku no Omunitorikkusu.)

After losing his family, friends and even his home world, Ben Tennyson, hero of the universe gets transported to another world after defeating his greatest enemy. he finds himself in a new world, this one filled with monsters known as Yokai. With which he now attends school with, among them are a beautiful double sided Vampire, a lustful Succubus, a tiny witch, and a stoic Snow Woman.

(Sequel to A Certain Powerful Omnitrix 4.) Ben has lost all his memories, the only thing he can now remember is his girlfriend Misaka Mikoto and the device on his wrist known as the Omnitirx. As Ben tries to adjust to a life where he is in an absolute complete blank about who he is, a sinister plot emerges. Somebody tries to force Mikoto into a level 6 shift through the use of an electrical virus that sends her on a destructive rampage. To solve this problem, Ben tries to siphon the virus out of her using the alien form he calls Feedback. However, as Ben will soon figure out...that's exactly what the researchers in Academy City want....

(A Ben 10 and Rosario + Vampire crossover. Please give it a read and leave a review of your thoughts) Christian Hawke's been given the mission to build a bridge between the world of humans and monsters. What challenges await him in his quest for peace? Will his bonds with his new friends help in his task or lead him to despair? Armed with his new Omnitrix, anything is possible. (Also on FanFiction.net)

(sequel to A Certain Powerful Omnitrix 3) Ben Tennyson has discovered his most powerful alien yet. And everyone wants it. Now, multiple factions from all the world governments, magic organizations, and Academy City are fighting for the control of Alien X. If Ben and Misaka Mikoto wish to survive this new war, they'll have to find a way to control Alien X , or the Earth might just enter a new age of total devastation.

After the defeats of Terra of the Left and Vento of The Front by Ben Tennyson, Acqua of the Back sends out a warning that he intends to destroy the Omnitrix and the one wielding it. In response, The Church of England sends the Amakusa Church to provide protection while the Plumbers send in forces of their own. But can anyone protect Ben from a Saint Class magician powerful enough to even defeat the Ultimate Aliens with ease?