Legend of the Blue Moon Mercenaries

[Interstellar Cultivation? No, Hardcore Parenting!]

Everyone else gets reborn into a wish-fulfillment cultivation story. I was reborn in another world, where at six years old I had to dig for crystal cores on a battlefield against the Zerg, and compete with them to see who could eat more sashimi? A family resource competition? My younger brother is a pure-blooded European-luck champion, making me, his premature older brother, look like a freebie thrown in with a phone top-up.