"Malkuth wanted others to know, about how diverse and brilliant colors are... About how colors are ever-changing and free-form, like how the mix of two colors can bring a brand new color! That's what she thought, at least" Malkuth is the Patron Librarian of the Library's Floor of History, and the former Sephirah of the Control Team of Lobotomy Corporation's headquarters.

"That is that and this is this." - Oliver, quoting Roland Oliver is a Fixer of Hana Association's South Sector 3. Also is Roland's former colleague from Charles Office.

Father Garcia is a character from the videogame , called Faith.

"The same book can show different things each time you read it. Understanding a book completely is a repetitive process, you know? ...and I don't want to stay ignorant forever. That's annoying." - Tiphereth Tiphereth is the Patron Librarian of the Floor of Natural Sciences in the Library, and former Sephirah of the Central Command Team in Lobotomy Corporation.