Buffy the Vampire Slayer, Season 11: Giles, Girl Blue Vol. 1
Buffy's Rupert Giles returns to high school! But this time-as a grown man living in a teenage body-Giles will be a student instead of a teacher. At an inner-city LA-area school, when a mystical influence is detected and teachers start to go missing, Giles enrolls to investigate. What he finds is more than vampires and demons... something unusual and frightening is happening here. If Giles can get through one day as a student, he'll have a chance to find out who, what, and where-but high school is still hell, y'all. Collects issue #1-#4 of the miniseries.
"There's just enough mystery about both the demon and Roux that you'll want to keep reading to find out more." -comicbook.com