Thanks for feeding my obsession with background information. This kinda stuff really helps me with my own writing since it just makes you think about that has happened to the world your characters live in. I'm excited that you seem to want to make this a series.
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I did notice a few spelling and structure things...yes, I'm a perfectionist...I know...I'm sorry but I just want to help.
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"It was more of a jealousy thing however, and it did upsert Arumla that his brother was better than him." Spelling: 'upsert' needs to be 'upset'
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"This was because, for hundreds of years they have been equal but now with communication they were able to rise above the level of equality." Tense: the rest of the paragraph sounds past-tense but this switches to present tense, it is kinda distracting.
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"The next to experiment was in fact Arumla who used actions that he played at in games against his brothers." Wording: "played at in games..." sounds kinda funky, but not too bad.
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"The only thing left was to sacrifice his own life, for than he knew he would be with his fallen brother and not helping the evil Arumla." Wording: "for than he knew he would", 'than' needs to be 'then'.
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"They landed on it and sensed a being, they seen a being." Wording: "they seen a being." 'Seen' in that context is confusing...maybe 'saw' would be better.
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"(too be continues)" Don't know if you did that spelling on purpose but for the serious tone of the chapter it doesn't really settle well...
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I look forward to the next installment. Thank you for the review of my prolouge. It took a long time to finally settle on the plot, since the first chapter is always the hardest to write. It's good to know someone found it enjoyable.
~bless.