Board Thread:Questions and Answers/@comment-44024990-20191018224601/@comment-6697950-20191021141728

Are you referring to the side stories, or lore/design art booklets? The side stories are basically a prologue and epilogue to the story of Ordinal Scale the movie, the former covering how Yuuna had died, while the latter covered what happened with Eiji and YUNA after the stadium incident. The former was given away to people who watched the movie on certain weeks in Japan's cinemas, if that's what you're referring to. Both stories have been translated to English.

On the other hand, the booklets basically had design art and information on Ordinal Scale's in-game lore and stuff. The booklet was also given away at Japanese cinemas, but it was later incorporated as a bonus for purchasing the Ordinal Scale Blu-rays/DVDs (the English BD/DVDs had a translation of this booklet). There is also a translation of the lore bits online.