IDK how this is called in English but there is a diseas thats in my language called as "face blind" where you can't recognize or distinguish faces of most people you meet so you have a hard time to remember them no mather how often you saw them before and it will be harder for you to recognize these people in a crowd of people you know and don't know
And I had a moment like this right now as I looked at the photo of a JPop-group. I could recognize 3 of the 5 Japanese member but I only got 1 of the 6 Korean member and than I looked at the pic and everyone started to look like the same person and I really had no idea who could be who, especially not for the Korean members cause they look so much alike like if the group was made from twins or siblings o.o
I kinda feel bad that I failed to be able to recognize and distinguish the members