"So I guess you're one of the people that Elder, the big bad ancient menos hollow, said was watching over us." He was wearing shinigami garb, had a supernatural aura around him and he was constantly nearby as their teacher. He was in a class with a bunch of other spiritually empowered people. It all made sense.
Hibiki raises an eyebrow at the mention of a menos. They'd crossed paths and lived? How interesting. And a bit disturbing.
"You could say that, Go-kun." He doesn't really elaborate, simply taking in the scenery.