Bico, a magical tools master who attended the Magic Law School with Muhyo, suddenly appears at the Bureau one day. Bico asks Muhyo to come to Magic Prison No. 18, a prison where very powerful spirits are sealed. A talisman that had been used to seal the bottom level, where the most dangerous spirits are kept, has been ripped off its door... and Bico feels responsible as the one who had made the talisman. Muhyo agrees on the condition that Bico will owe him one later, and they set off for the island that houses the magic prison.
But in order to protect the 
secrets of their trade,
،لكن لحماية أسرار عملهم
Doch um das Wissen
um die Herstellung geheimzuhalten,
Pero para proteger
los secretos de su oficio,
Pero para proteger
los secretos de su oficio,
Pour ne pas compromettre leurs secrets,
Tuttavia, la necessità di proteggere
i segreti del mestiere,
Mas para proteger os
segredos de sua arte,
Секреты сделок с ними
бережно хранятся в тайне,