Antisocial, dorky boy seeks fun-loving, sexy vampire for blood-sucking and transforming into her minion.

Nanakusa is a vampire. That’s okay with human Ko, he wants to be one too but transformation doesn’t come that easily...

Vampire Haruka turns out to be a menace when he attacks one of Ko’s classmates and asks Nazuna on a date. Which will tick off Ko more? Meanwhile, Mahiru and Kiku prepare for the ultimate test of their love. Is it really possible for vampires to turn human again? Plus, school trip group bathing!!