I'm guessing that Yukari attempting to interrupt the ritual is going to end up with Sakuya in Gensokyo. Or Remilia stuck with Sakuya. Cue high school buddy comedy.
vhite said: I thought vampires only drank peoples blood, didn't think they snacked on people like that as well.
Well anything goes in touhou so I'm not surprised really.
EoSD says the SDM serves cooked meals made from living humans, but it isn't known if more than just blood is included. This seems to be mostly for Flan's benefit since she basically doesn't know how to be a vampire, but Remilia may partake, as well. Canon Remilia is a light, but messy eater who only takes blood from her victims, so they usually tend to survive.