Allen, a civil engineer, accidentally crossed the beast world and was almost sacrificed as a "hairless disaster star" at the beginning. Activating the "Eye of the Sky", he saw through the fragility of the world at a glance - poisonous water, cold disaster, beast tide, all of which come from backward productivity. In the face of the oppression of hostile tribes and the impending cold wave, Allen chose to beat the rules of the beast world with reinforced concrete and physics. He led the exiled orcs to dig deep wells, burn pottery, smelt steel, and make crossbows to upgrade a dilapidated camp into an indestructible "Holy City of the Sky". When the army of the Chigu royal court was overwhelming, when the hundred-year cold disaster came in advance, Allen swore to the sky: If God does not save the world, I will build a city and take my life back!
