@Korvalus Well, part of the problem is that they know it's a game... so these people are game characters....
Which, I think actually makes a huge flaw in these series that the authors ignore... if the game characters look like anime characters to the characters... then do these worlds look anime to the characters... or real??? Like, we see them as anime style, but that's just because they're drawings....
But such questions are never answered...
But if the characters are seen as real to the MC, then there is no way they'd recognize the characters by design and would eventually forget the names...