Lucifer, or Luke as everyone calls him, grades the math and history homework of his students. After he is done, he gets up and orders lunch for him and alastor before dropping by alastors' classroom. Unknown to him, one of the students reported to the group chat about him, and alastor and their weird rival/friend/possibly lover relationship, about how Lucifers' shadow had a long tail with a arrow for a second

(Lucifer is still the devil, though no one knows this. The class has a group chat on the general cryptic professor in which he something acts downright weird like when he was crawling on the ceiling hissing when alastor was home sick once. He is the math and history teacher just shy of cryptid.

Alternately: Vox and alastor were forcibly reincarnated on accident and Lucifer came to earth to watch over Alastor so he joined the college as a teacher as well, he misses alastor not that he'll admit it)