A special book that came with the online order of Fate/stay night [Réalta Nua]. It contains arts and writings from TYPE-MOON staff (many of which are quite comedic), and more.
A PDF version of the book is available on TYPE-MOON's website. In 2011, this book was included in the compilation Fate/side side materiale complete. The "e" at the end is to show this is not a serious material book.