In the Beginning

Twins Mira and Aziza were forced to face the reality of the world after a tragic accident. However, as threats continue to arrive on their doorstep, Mira takes matters into his own hands, using his abilities to alter others' perceptions of reality. As well as a little bit of theft, murder, and a casual trip to the Underworld.
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Original Prompt: Create an original myth to explain why or how something came to be.