Thanks for the chapter!
I wonder if the dorm mother has a split personality or something and is really the one in the bunny suit. Just being in the bunny suit out of everyone's direct site brings out the perverse part of her or something. That or the bunny is really Itsuki although could be someone not formally introduced too. In any case, considering Itsuki's build and refusing to be seen naked by the guys I'm betting Itsuki is really a girl pretending to be a boy for some reason.
Anyone have any idea why a school for training female Kuroko's has male students in it? Since the guys can't use flames you'd think they'd be the target of bullying or spending a lot of time in the infirmary due to constantly getting caught up in Kuroko battles. Gotta admit Ryoka and Takumi are really brave, albeit too perverted and impulsive, to try to sneak a peak on a bunch of women who being more fit than they are can outrun and outdistance them in a chase along with having black flames and lots of combat experience to use for exacting divine retribution on them for peeking. That and considering the school probably has a higher female student ratio over male students it wouldn't be surpriing if a lot of anti-peeping measures were also installed like that haunted hot spring OV that Aria and the others from Aria the Scarlet Ammo visited. That or the girls have blanket permission to do anything they want for punishment short of death of permanent physical injury or death.