You... might have some issues with Trails, then? It's definitely guilty of this to an extent, though it comes across less as over-explaining and more as just... realistic explaining, I guess? Like, if you were to go get a job hunting monsters in real life (were such a thing to exist, of course), there'd be training involved, right? And so there is here.
It doesn't feel extraneous, exactly, but it can be mildly tedious at times (especially if something really cool is coming up and you just want to see it transpire!). It's absolutely worth sticking through, however, as there is most definitely a payoff waiting for you at the end -- a payoff that wouldn't be nearly as impactful without all the buildup.
-Tom