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.

An Invasion of Academy City has begun. The Catholic Church has sent one of it's most powerful magicians Vento of The Front, in order to begin an invasion of Academy City by the Magic Side. However, Aleister doesn't plan to let his foes take him down easily. Meanwhile, the world's most powerful Esper, Accelerator finds himself fighting his own battle. Ben Tennyson finds himself caught in the middle of these two vicious battles by a strange circumstance, unwittingly dragging Albedo into the situation as well. This collision of Academy City's greatest powerhouses and the Magic Side's intent for control, is bound to cause mass mayhem.. the Invasion of Academy City has begun!!

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.)

It's the 3rd day of the Daihaseisai, and Mikoto and Ben finally have established themselves as a dating couple. However, Ben wants this relationship to be special.. he wants to do something that will guarantee a lasting relationship with Mikoto. Ben's luck pays off when for once in Touma's life.. HIS luck actually pays off. Touma wins 4 tickets to Venice, Italy. A seaside city of romance.. and with his generosity, Touma invites Ben and Mikoto to come along with him and Index. However, romance isn't cheap.. sometimes there are unforetold detours.. like a certain magical organization that is preparing itself for war! Can the super powered alien forms of Ben 10 match up against the forces of the God's Right Seat? Or is this vacation going to be the last vacation Ben and his friends ever take?

(Chronology: Daihaseisai Arc of A Certain Magical Index.) The Daihaseisai is here! A festival event where all the schools in Academy City compete with each other in sporting events.. a festival even more popular then the World Cup. Espers from all over are encouraged to use their abilities. Meanwhile, the Board of Directors have taken an interest in Ben Tennyson after his success in defeating the Eigth Level 5 Impulser.. the Level 5 whose power was impossible to categorize.. and Aleister Crowley, the City administrator has taken up a rather sinister plan to find out how to test this new weapon in his arsenal... attract the most powerful conquerer in the Galaxy to do battle with that boy. Meanwhile, Ben is starting to realize the possibility that he might have feelings for Mikoto, but is scared of what it might mean... And while Mikoto feels the same way, she doesn't know what to do with those feelings.. But of course.. all things must eventually converge and resolve, for better or for worse.

y/n Nikos ( nicknamed Accelerator) is the younger brother to Pyrrha. Even though he is quite intelligent and has a powerful semblance ( pretty much a progedy since he was a toddler), he keeps it a secret to all but he's older sister, until one day a few before the start of Beacon he stops a bunch of criminals from robbing a woman because they were in his way, he accidentally got the attention of the headmaster of Beacon, Ozpin who makes are protagonist begrudgingly come to Becon with his sister. What kind of trouble will he get in to and how many people will he completely destroy with his power, let's find out. ( all pictures, RWBY, a certain magical/ scientific index/ raillgun/ Accelerator and other stuff are owned by there respected owner's.)

This story takes place just before Mirio kicks 1-A ass. Izuku Midoriya, the class wildcard. He seems weak but always surprises you. doing this has earned the attention of one Nejire Hado... how will the class react to this?