I feel obliged to point out what actually happened when Ucchi sees the other three asleep and tries to wake Yoshida. It switches to Yoshida's POV (who is still asleep) and she imagines it's Koroki attempting to wake her again so she lashes out and hits Ucchi who was trying to do a good turn and is seen staggering out of the room

It couldn't
have been Koroki as she is still asleep at this point.
The rounded borders on four panels is the artists way of telling you this isn't actually happening, it's a dream sequence rather than reality.