Ch'Iang Shih
Buttery spirits
In China there are vampire-like creatures called Ch'Iang Shih; they are created by having a cat jumping over the corpse of a dead person. They appear livid and may kill with poisonous breath in addition to draining blood.
If a Ch'Iang Shih encounters a pile of rice, it must count the grains before it can pass on. Their immaterial form is a sphere of light, much like Will-O-the-Wisps.