It did took him a while to navigate across the hallways of Diatu but he is finally here to take this class as part of his class timetable. By this point, Harry has been to two worlds: the Magic Kingdoms and Avalon (except he just got back the memories he had from the former world after arriving at Diatu from the latter world some time ago), so he is no stranger to the concept of the multiverse these days.

So he might as well add it into his list of subjects to take too. When he enters the classroom, he could see a flash of blue hair and he almost immediately recognizes who it is.

“Sorry that it took me a while to get to class right now,” he apologizes to Aqua, “Is class going to start at any moment now?”