@Sep10trion Maybe the logic used is the same like in a certain manga where the MC could change temperature freely.
He's still weak so he can't change much of his surrounding temperature and thus he got called as a failure. But once he mastered his power, he can make the world enter a new ice...
@kavinski Did you just complained about underage workers in a manga with medieval setting? Don't judge medieval standard using modern standard. You're comparing apple to orange.