Set in a fictional European country in 1924, a Japanese exchange student meets a mysterious, brilliant girl who only leaves the library to sleep. Her brother, a detective, relies on her exceptional mind to solve difficult mysteries.
Hidenobu Kiuchi
Grevil de Blois (voice)
Noriko Shitaya
Avril Bradley (voice)
Yui Kano
Cecile Lafitte (voice)
Miyuki Sawashiro
Cordelia Gallo (voice)
Takuya Eguchi
Kujou Kazuya (voice)
Toru Okawa
Brian Roscoe (voice)
Michiko Neya
Sophie (voice)
Aoi Yuuki
Victorique de Blois (voice)
