Just as I was thinking it was a completely braindead and immature maneuver to try and fight these demons at the capital immediately after obtaining the limit break the story goes and confirms it was indeed a braindead and immature decision. Why did they think this would work so easily when they barely have any real battle experience. Like it wasn’t that long ago they all got their asses handed to them by a guy who was significantly lower level than them just because he was more experienced and had a somewhat tricky skill.
nah my guess is the opposite, he'll one shot the demon since he's become too strong, hence the part where" all their preparations has gone to waste", because in a way they've wasted months preparing for this, time is the most precious resource after all. But then again there's that "time magic" skill that's been teased in the early chapters...
well i do agree with the braindead part tho, it's indeed braindead, just in the opposite way.