I Get Ten Times My Money Back

Zhang Zheng, a top student, discovered that his girlfriend was cheating on him while delivering food part-time. In desperation, he accidentally activated a ten-fold refund system. "Keep buying, buying, buying, and you'll get the richest man in the world at your fingertips!" "Wait a minute, this system can also be redeemed for superpowers! Clairvoyance, miraculous doctors, martial arts... Oh my god, it's so frustrating to be too rich.