As guild master!?? How the fuck can you claim to have that authority, you're the leader of a branch office for this company that he joined what, yesterday? And author is gonna totally like "hell yeah, my MC is dumbshit so ofc he's going to spill everything for no bloody reason".
I'm way more okay with all the MCs that tell their girls about their weaknesses than the MCs that tell some random OLDFUCK authority figure their weaknesses.
And I almost forgot, this dumbshit MC just followed a random group of guys into a dark ally, a fucking 3year old knows not to follow strangers damnit.