Professor Avidya or Professor Tighnari will do just fine.

[ he thinks perhaps to offer his first name, but their relationship isn't quite there yet - perhaps in his second or third season, when mayoi is closer to becoming a vampire, they will be on friendly enough terms for such intimacy as a first name basis, but for now? a respectful distance.

despite what they're about to engage in. ]

Are you aware of what's to come? That I will drink your blood, and you shall drink mine? It's how our blood claim will begin.