Give them some cookies?
Hey, the girl party. At least I recognise those.
Whenever there's this "sealed" stuff, it always seems to be a lot more for plot and balance reasons rather than any in-universe reason.
"Don't underestimate geeks."
Fair thing to say. If a geek gets interested in something, they
will find out. Just ask the geeks over at War Thunder.
Fighting a kid is a lose-lose situation. He's reasonable, at least as far as his own morality goes.
He reminds me of Kuro from the spider isekai.
"This guy is an Evil man too!"
<<Holy Sword Skill>>
Totally Evil.