"Sorry, it doesn't ring a bell."

Balthazar guessed the teacher was this guy's college tutor or something. Either way, he was about to learn the hard way that you should never take free drinks offered to you by angels. The "Angel Potion" was definitely changing Minoru's drink drastically.

"Try it. It won't poison you, love. I made a vow not to kill any of the guests here and besides the anti-violence field puts a stop to that."