"Fräulein＝Biblioteca" is an original song composed by nyanyannya with MEIKO. It was released as a single and is featured on the EXIT TUNES compilation album Vocalocreation. The song is part of nyanyannya's series "Lead Princess of the Color Stealing World." In it, Meiko plays the Auditor Fräulein Biblioteca, a judge who believes that the law is the "most treasured thing" that Princess Lidya is seeking. It has reached the Hall of Fame.