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After my strange summoning in another world, I had been pretty much reincarnated! And with my undying desire to go back to Genesis where I can finally met once more with my family, I had done a few… crazy things. First of all, I destroyed the Kingdom that summoned me. Nothing personal, they wanted to kill me and I got a bunch of EXP out of it. And then, in our way out, we found a giant army of demons that were actually heading to the Kingdom's way. No problem, we killed them too and made them my dinner, we got a lot of EXP out of it as well and I even evolved.
Check "The Protagonist's Sister Is Actually the Strongest"!