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The dragon family rules were harsh, and unlike the Vampires who raised their children in safety and taught them many things, they used to simply drop off many clutches of eggs across the planets of the Galaxy, leaving them on their own. The dragons would be thrown into dangerous environments, although they were strong since birth, the beasts they would fight would be even stronger most of the time, powerful divine beasts or creatures that could even defy logic itself, such planets were catalogued as "wild worlds" and were filled with dangers and opportunities.
Check "The Protagnist's Sister Is Actually the Strongest"!