(Disclaimer! MC DOES NOT GET WISHES COS OF GOOD KARMA) In the beginning, there was nothing, until Chaos appeared and ended the period of emptiness. From Chaos sprouted two elements, two concepts from which everything we come to know derives from. Purity and Taint. The two of them couldn't exist in unity and peace so why were they present in such an ordinary-looking boy? Btw I started posting this first on Webnovel so the people there voted for Incest so do mind even though the MC and his sister are NOT blood-related.