Multiverse Of Borrowed Power

Borrow... to take and use (something that belongs to someone else) intending to return it. That is the simplest explanation of the word. I have joined the game against my will; they stack the odds against me. A system that is not even my own, a strength that never belongs to me. However, no one said I can't use it any way I want. I have a question, however, WHAT IS MY EX DOING HERE!? Starting World: Kengan Asura