DHillion
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less info dumps and a bit more about him getting stronger and the story progressing. I like the doppelganger idea, just hope they don't come up very much in the story. They'd be good for fillers.
A good start. Hopefully he doesn't get too much in the way of skills and equipment in the beginning. If the growth of his strength grows steadily and doesn't just shoot up. then the story will continue to have a stable plot.