The God that chose me as his Pawn

Not too long ago, I lived a pretty decent life. There were good days and bad days, but... it surely wasn't what I had pictured for myself. After I died a really sudden and unexpected death, a self-proclaimed 'god' offered me a chance to start a new life somewhere else and I blindly made a pact with him. Now, only a few years later, my reborn self is attending a High School in Japan and has to put up with stupid challenges my divine 'partner' made up for me. Oh and I almost forgot to mention this little power that god gave me. Well, HE called it power but is having an almost nonexistent presence really something you can call a divine gift?