The Ordinary Hero

Wang Pingfan, once an ordinary orphan on Earth, is mysteriously reincarnated into the Heavenly Realm, where he suddenly finds himself in a chaotic world of cultivation.  Struggling to comprehend his new life, he discovers a system called the "Full-Brain Assistant" embedded in his mind, offering him knowledge from distant galaxies.  
The catch? He must trade the rarest and most priceless resource of this world—spiritual stones.  
Can he find a way to earn these stones to gain the power needed to survive in this perilous world?