This bonus OVA picks up after the television episodes, with Rea Sanka back at school and trying to pass as an ordinary student now that she is a zombie. Chihiro Furuya keeps watch over her at home and in class, since too much exertion speeds up the decay of her body, though her new strength turns out to be useful in both places. Their zombie kitten Babu, meanwhile, sets his sights on a cat that is still very much alive.