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)
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