STORY

Maki, Niko, Kaoru, and Nami, a group of high school girls who are manias for blood donation. They are doing club activities as a “blood donation club”. But at school, they are treated as creeps. Everyone avoids them all the time. One day, a beautiful girl named Mai appears before the girls, and their lives are changed completely.
After talking with Mai, they find out that Mai is the descendant of the vampire, she has to live by drinking living human blood. Mai confuses the girls` lives who are rather in doubt about Mai`s unbelievable power, eventually caused a great uproar. In a whirlwind of trouble, the girls start to accept Mai and feel that they must protect her. It is an unusual slapstick story sent by adolescent girls.