I'm Only Six! What Is This South Heaven Gate System?

Bai Ri transmigrated by accident and became a six-year-old boy. From the start, he awakened the Southern Heavenly Gate System! [An imminent crisis approaches. The Southern Heavenly Gate System has officially awakened.] [Host, please complete the beginner's task as soon as possible: help the Dragon Kingdom realize the Southern Heavenly Gate Project.] What the heck?! What kind of decent System gives someone a beginner's task to build the Southern Heavenly Gate? No way! I'd better lie low and wait until I'm an adult. [Because Blue Star has been sending signals into outer space without pause to attract the attention of extraterrestrial civilizations, it has triggered the Dark Forest law.] [Blue Star will face a massive invasion by extraterrestrial civilization in twelve years. Host, complete the beginner's task immediately and fight to defend Blue Star.] What in the world?! I'm only six! Can't I get any time to grow up first? To complete the System's mission and build the Southern Heavenly Gate, Bai Ri turned his attention to his father's nearly bankrupt aircraft manufacturing company. Twelve years later. When the outer-space fleet arrived from afar, excited to invade and carve up Blue Star, it was met with skies filled with Baidi fighter jets, Luanniao military bases, a space Great Wall encircling the eight planets, and countless advanced technologies. The invaders were dumbfounded. Who the hell told me Blue Star was a low-level civilization?