The student council seem like some chill guys. At least, Yuito does. I thought his ability was simultaneously the stupidest and funniest reveal ever, but the page showing information about him seems to imply that it's a lot more useful than it seems.
I like how the term for the ghosts has only just been coined and isn't something everyone uses just yet. They're also not too sure if it's a very good one, and if it would catch on or not. Usually, this sort of stuff has already been established in-universe, and it gets pretty silly how the characters treat the term with so much seriousness no matter how dumb-sounding the name they used is.