Comment by simiones

I don't think it's conceptually difficult, it's just hard (for some of us, at least) to remember the names of a culture you haven't been exposed to. I speak a language with slavonic influence, so I didn't have this problem with Russian literature, but I remember vividly how hard it was to remember the names of characters in the first anime I watched, just because I was so unaccostemed to Japanese names (even though they were clearly very distinctive).

The recall of words you aren't familiar with tends to be pretty poor. This is also visible in how hard it can be to build vocabulary when learning a new language, and how you can completely mix up words at that stage - there's nothing about names that makes this any easier.