The only time manga characters use the bathroom is when the author has a piss fetish, that’s a fact.Weird how they were able to survive for a whole month like that, I can get that you can survive that long without food and if the casts were porous then they would be able to breathe (even if only barely) but what about water? also if they end up relieving themselves (both 1 and 2) it would end up trapped there and potentially make them sick.
That's Kubaru when she was in middle school.Is the black haired lady on the vol 3 cover this simp lady?
Inb4 we find out it actually is supernatural and Kubaru is a Haruhime-like figure.The one month thing is just straight up supernatural, it really stands out here.