Controlling such a large amount of water will take days without preparation.

Well, even if we wanted to prepare, those grimoires are already submerged.

Quite a big problem.

A "big" problem for sure ♡ The original pun pronounces 身体 (body) as "mondai", which is the same pronunciation for 問題 (problem). 悩ましい can also mean "difficult" or "seductive"

If worst comes to worst, I could just Royal Flare that wall over there—

Go "boom"!

If you get Remilia'd, then I'll be the only sane person left!

Ah, she's treating me like I've already been Remilia'd... Noooo!

Hmmm.

Looks like we're cornered.

So to sum up the big points...