Reishoujo Mako

Yuki's best friend is a beautiful girl named Magiko who has psychic powers. One day, strange phenomenon start occurring at school: dead frogs for dissection start moving on their own, and even human models start walking around the school. Mago and Yuki sense a strong murderous intent and decide to confront it, but... maggots spring out, blood sprays, and heads start to move! This is a quintessential Hino Hideshi's world!

(Source: MangaZ, translated)