Justine? or Remember?

[Romulator]

If you are wondering wether you should read remember or play justine first, I'd say that it doesn't really matter since Justine does not relate to Amnesia - TDD in any important way.

The only real means of relation between Justine and ATDD is that Daniel knows of Justine's existence and wrote a letter to her. You can find the letter within one of the levels