Earth as we know it today felt like they could expect anything. They had Heroes with powerful Quirks, technology that benefited them greatly and a society that wouldn't crumble to pieces easily. What's there to worry about? How about Villians hellbent on world domination, a few secret organizations and Aliens from Space? Lucky for the Earth it has it's own protectors just for them!

Om-inficent (adj): Unlimited in creative power; Jen Tennyson thought her family were the only heroes in the Omniverse, but not until she's thrown into the Quirkverse where other heroes need her the most.

At a young age of 10, young Izuku Midoriya and his friends goes camping with their families for the summer vacation, until it went south really fast. Finding a alien watch with secrets hiden in it he must choose to use it wisely as a vigilante and being a target of a evil warlord that looks like a tentacle hentai monster. Now follow the origins of the greatest hero Izuku 10.

An American exchange student has moved to Japan to reach his dream of becoming a hero. To reach this goal, he will enter the greatest hero academy the world has ever known: "U.A. High." He will reach his goal, no matter what stands in his way. Doesn't matter if they have tentacles, armor, or the power to destroy whatever they touch, they can't stop him from becoming a hero!

This is a side-story that is connected to my actual story "Heroes Never Die; It's Hero Time" where Izuku has the Omnitrix. So reading the main story is necessary to understand this collection of Omakes/OVAs. I aim to post an Omake/OVA every Friday when I am unable to post a chapter for the main story. Full summary, explanation, and guid lines for suggestions are inside.

did you ever wondered if we was alone I'm sorry for telling you that but yes we're in these universe there are not E.V.O or aliens but there are humans a special kind of humans

It started when an alien device did what it did. Izuku Midoriya found a strange device on the beach one night after training when the device jumps onto his wrist. It grains him abilities from beings from other worlds. Watch him as he and his friends go through their adventures on Earth and Space in: The Alien Hero: Deku 10

I looked around and saw that there were not that many ben 10 x mha with ben having the omnitrix like there were only 27 out of 100 story with just ben and in 2 of then ben didn't have omnitrix. In this ben dies of old age at 110 and is reborn in mha world, and due to certain circumstances ben will have to be a hero again, ben will help the next gen of hero in his own wayEXPERIMENT

Ben Tennyson gets sent to the world of My Hero Academia. Where is a world full of heroes and not everyone can be a hero. He enrolled in U.A High the number one hero school in the world. Many challenges will be ahead of him. He have to Go BEYOND! PLUS ULTRA! BenxHarem.

Some worthy souls are chosen to carry the mantle of great heroes. Sometimes, this is destiny. Other times, it's all about being in the right universe, at the right time, chosen by the right watch.

Izuku Midoriya is about to give up on his dreams of heroism when a teenager clad in a green jacket and a man claiming to be a professor break into his room in broad daylight. Ben Tennyson and Professor Paradox have travelled to the My Hero universe in order to find a worthy successor to wield the Omnitrix once Ben passes... and they firmly believe Izuku is worthy to inherit it.

His goal in life was to be a hero and along with the gifts that he has gained, he will be one. Mini extra crossovers with the story. Izuku x Hearm

One would think that in a world where everyday people possess impossible abilities nothing would really be a surprise. Izuku Midoriya, who upon the age of four was diagnosed as quirkless, was denied of his dream of become a hero that can save everyone with a smile. But fate gives him a chance; allowing him access not to one but a universe of powers and abilities.

It had now been 3 years since Ben took a chance at a normal life. However, history had a tendency to repeat and life had a tendency to be unfair. With the news of someone person putting in a good word for him at UA, Ben would once again don the Omnitrix and face the challenges ahead all the while having one question in mind: "Could he meet the legacy of that watch once again?"

Ben Tennyson is the current wielder of omnitrix He had to go to earth for a investigation but when he finds traces of element X things get complicated now he has to deal with threats from both earth and space, and for some reason his dad asked him to go to an stupide hero school "i didn't even knew that hero had a school" can ben deal with his double life and keep his work secrete.

Ben has not been a hero for 3 years... But circumstances force him to put on the Omnitrix again!

A chance of a vacation from his universal renown has landed Ben in the world of My Hero Academia and into a crash landing into Izuku Midoriya's life! What will this mean for Izuku's story? What will change? What will stay the same? There's only one way to find out!

Neito Monoma would tell his friends and classmates that in the world of Quirks and Pro Heroes, he has accepted his role as a side character. In the realm of aliens and the supernatural, however, Neito is gifted an otherworldly watch that thrusts him into the center spotlight. Whether as the Phantom Thief or the Wielder of the Omnitrix, Neito vows to be an exemplary hero.

having been ambushed by another Lord of Chaos, Kenneth Tennyson finds himself in a world of heroes and villains, and new opportunities. (small Harem planned)

After a grave defeat, Ben loses hope in being a hero but after some unexpected circumstances, the wielder of the Omnitrix is transported to a world filled to the brim with heroes. Having to adjust to not only a new country but also going to school to be a hero Ben has plenty of challenges ahead.

Midoriya Izuku, also known as Deku. A powerless child in world of superpowers with the dream of becoming the greatest hero of all time. The Omnimatrix, also known as the Omnitrix. The most powerful device in the universe, capable of allowing it's user to walk a mile in the shoes of other lifeforms. Maybe it was fate that these two met. Or just coincidence. Anyway, it's HERO TIME!

Ben,Gwen, Kevin and Rook were originally on the verge of a road trip to enjoy a well deserved rest. Their plans got interrupted as they were contacted by the principal of U.A High,who requested their help to teach Class 1-A what it means to be heroes.

This will be my first story and it's going to be about a clone of Ben 10 that went to the mha world by a portal that was created by Dr animo while fighting him after the story of Omniverse and the storyline will begin just after midoriya rescues bakugo from the slime villain and this Ben will be very op and this WILL NOT be a harem story I hope you guys like my story

Seguimos a Ben Tennyson, un joven de 15 años, que después de encontrarse con un aparato alienígena que le permite transformarse en diversas especies alienígenas durante un viaje de verano lleno de aventuras a la edad de 10, decide inscribirse en UA, la mejor academia de héroes del mundo en Japón.

while training to get into UA Izuku came across the Omnitrix and his world gotten a lot bigger and now he has to master both the watch and one for all to become a hero like his idol All might but can he make the cut? find out. Izuku/harem mixing with some DC characters and a few other surprises and a bit dark toned. (On hold)