I Can't Stop Biting You (2022) on Netflix

Plot summary

Kurusu Private High School has a blood donation club, and its four members are Maki Watabe, Jinko Sumida, Nami Unten and Kaoru Konno, girls who find pleasure in having their blood drawn. One day Maki meets Mai Vlad Transylvania, a girl dressed in black, in the donation room. Mai creates a disturbance among the nurses and faints, and Maki carries her into the club room. There Mai explains that she is a dropout vampire, unable to attack humans. Her fragile look moves Maki and the other members, and they decide to give her their own blood instead of donating it.