Michio enters the labyrinth with Roxanne and learns more about the world. He realizes the actions he'd been taking based on assumptions have been terribly inefficient. With the knowledge he learned from Roxanne, common video game strategy, and skill settings, Michio develops a method to efficiently make money.
It's typical for people to sell 
them once they turn blue,
und nach 100.000 Monstern
werden sie blau.
Quasi tutti vendono i cristalli quando diventano blu,
dopo aver sconfitto centomila mostri.
É normal as pessoas venderem
quando eles ficam azuis,
Хотя чаще продают голубые —
это сто тысяч убитых монстров.