Miyu shows Kooji her drawing she just made of a brain. "Well I'm guessing that maybe...just maybe....while you were drunk, something was triggered in your brain that caused you to somehow end up here and no longer in Konoha which may or may not exist. If it turns out Konoha does not exist, that just means all your friends may have somehow triggered the same thing in their brains, probably in different ways, are in different parts of this city."