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 a magic tool's power needs 
to be equal to its user's.
لكنّ قوّة أداة سحرية بحاجة أن تكون
مساوية لقوّة مُستعملها
pero el poder de la herramienta
debe ser igual al del usuario.
pero el poder de la herramienta
debe ser igual al del usuario.
ma il potere di uno strumento magico
necessita la stessa potenza in colui che lo utilizza.
mas o poder de uma ferramenta
mágica precisa ser igual ao do usuário.
Однако орудию нужен
владелец, равный по силе.