That was during a glitch.

[He shakes his head and sighs, as if everything were just a sorry misunderstanding. This whole thing is promising to be a headache no matter how Douman twists it judging from their previous interactions, but letting Fandaniel just keep tossing his true name around so easily isn't an option either. Sooner or later a Japanese will catch wind of it, connect the dots and then the fallout won't be pretty.]

Nurarihyon. Most just call me the Principal where I'm from, but that's obviously no real option here.