[ Yes, he's quite grateful that turn of events was averted without a fuss, and that he now knew the location of his dorm room. Always a good thing to learn.

While Naegi can't help but take in the surroundings when they enter, he quickly stopped himself when Oowada asked that question again. Instead, while putting a finger in front of his mouth in a silent reminder to keep the volume down, Naegi started yet another exposition talk.

In truth, he felt reluctant to start off this conversation answering that question, but he knew Oowada would just keep asking if he tried to start elsewhere, so best to get that out of the way first. ]

The mastermind...The one who controlled Monobear this entire time is the actual Junko Enoshima. She stayed in the topmost floors of the school the entire time.