Holy shit Komona-sensei is paying two people to impersonate her crush to satisfy her "needs" and makes them live inside a room they can't get out of without her permission...
When her obsession was revealed it didn't feel too crazy to me, not because it wasn't but I'm just used to it from seeing things like that in several other manga I've read. This however, takes it to a new level.
I thought they were clones until I notice B-ko's chest was much smaller than the real one. Clones or not, paying these two girls to dress like her crush and wait on her day and night, while not allowing them to go outside without her permission, is fucked up on so many levels.