It's family visiting day at the academy, but with his parents long dead and Kevin treating him like a stranger, William is feeling down.  His mood quickly changes when the father of fellow prefect Swallow invites him to dinner, and the boy himself insists he wants William to "meet my parents."
Demon law prohibits us from interfering 
with one another's affairs.
Las leyes infernales nos impiden 
interferir en los asuntos ajenos.
Las leyes infernales nos impiden 
interferir en los asuntos ajenos.
A lei dos demônios nos proíbe de
 interferir nos assuntos de outrem.