Metropolis: the System Makes Me a Bastard

"Ding! Paddling for half an hour for the college entrance examination, you will be rewarded with 50 reputation points."

"Ding! Paddling in the institute for half an hour will reward you with 50 reputation points."

"Ding! Practice paddling for half an hour before the Olympics, and you will be rewarded with 50 reputation points."

"Ding!..."

As a gangster, Lin Chengfeng said it smells really good!