Well, the WN states the reason why the hell did he get those big-ass knife and other survival-ish tools is because...
Yeah, the author kinda pulling this from their ass, but rather than straight breaking the law somehow without anyone to figure out, I think this was better.
WHAT THE ACTUAL FUCK IS HE DOING
THE FUCKING ATMOSPHERE
OH GOD
THAT MAGIC SHOULD BE NAMED AS GIGAFREON BECAUSE FUCK IT'S A BIGASS HOLE IN THE FUCKING SKY
THIS KID IS MUCH MORE DANGEROUS THAN THE WHOLE HUMANITY ITSELF