The game has a problem with how it handles new/seen text. Replaying different choices in order to see different routes, large blocks of text are treated as "new", even if only a few sentences or paragraphs are new in reality. This means you cannot use the "skip seen text" option, and have to resort to "skip all", which inevitably results in missing some text.
Just like all visual novels, only the actual new sentences should be treated as "unseen", not the whole scene they are in. Currently this makes the game undesirable for multiple playthroughs.