A Certain Powerful Omnitrix. (とある パワ の Omnitrix)

(A certain magical Index and Ben 10 fan fic) Misaka Mikoto is a level 5 esper living in Academy City. Despite the occasional thugs, life is relatively normal for this girl electro master. That is until she meets Ben Tennyson wielder of the device known as the Omnitrix. Now with both the science and magic sides pulling...