“You've already heard about it, I presume. It seems they're doing mock battles between classes. That said, I'm not making much progress in my research regarding your Crest... Your flesh... No, your blood is fine. Leave a few drops there.”
Hanneman von Essar is a character in Fire Emblem: Three Houses. He was formerly a nobleman of House Essar, but currently serves as an instructor at the Academy, where he offers lessons in Bows and Reason. He possesses a minor Crest of Indech.
Hanneman tends to get excited whenever the topic of crests comes up. He is especially interested Byleth's mysterious Crest; he becomes unable to hide his excitement from academic curiosity. It seems he doesn't quite get along with Manuela, his colleague.