One sleepless night, Ko slips out to walk the streets. Life after dark is a revelation! Especially when he meets flirtatious Nazuna. Except that shes a vampire. Thats okay. He wants to become a creature of the night too. But transformation doesnt come that easily... Vampire Haruka turns out to be a menace when he attacks one of Kos 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!