But... but how could one simply lose all of their memories like that? And is it possible for them to return? Is there anything that triggers them to be forgotten about?

[ That is one of the most concerning aspects yet in Keith's mind, and it only serves to create even more questions than it answers. Not that it's Kotetsu's fault; he's doing the best that he can, and it's nothing that he doesn't appreciate, but it's also difficult to take in all at once. But he's trying his best not to overwhelm the other man with too many questions yet, even though he sounds scared. ]