plot is over rated. these hentai directors want to tell a story, but they usually get cancelled after a few episodes because of lack of funding. People nut and move on. No one wants a 12 episode hentai with plot.

mom and daughter are vampires who have lived for centuries, they like to fuck and suck. Then they drink their victim’s blood. Mom started having feelings for neighbor, daughter thought this was their next target, and joined in on the fun. mom’s feelings for neighbor made her decide to find a new victim, and daughter at the end decided to kill the neighbor and the girl, probably because they know too much.