Even after Camio reveals himself, William remains concerned only with his grades and tuition and tries to distance himself from the demons and their political war.  Unfortunately, he soon finds himself roped into another problem when the Headmaster asks him to find the source of a mysterious singing voice that's been disturbing students late at night.
How long are you going to continue 
clinging to the Young Master?
¿Hasta cuándo continuarás 
molestando al señorito?
¿Hasta cuándo piensas
seguir molestando al señorito?
Até quando pretende ficar
 grudado no jovem mestre?