Calamity of a Zombie Girl(2018)

Aru Zombie Shoujo no Sainan

The story revolves around a beautiful girl named Euphrosyne who is regretfully a zombie. Euphrosyne wakes up in an underground archive of a university, where a maid named Alma tells her, "Madam, kill the students and retrieve the 'Secret Stone.'"

(Source: Anime News Network)