Avatar System AS

What if you get the chance to live the life of anyone, in your choice of world. And do anything you want. Will you take the chance?
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English is not my first language. Bad Grammar too. If you can keep up then continue to read.
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This novel is 80% Hentai, 10% adventure, 5% Slice of life and 5% killing.
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Tag: Incest, Incest, Incest, Harem like collecting Pokemon, Multiverses, overpower MC