One sleepless night, Ko slips out to walk the streets. Life after dark is a revelation! Especially when he meets flirtatious Nazuna. Except that she's a vampire. That's okay. He wants to become a creature of the night too. But transformation doesn't come that easily... Now that Ko and Nazuna know the identity of the vampire responsible for the deaths of Kyoko's parents, they are on high alert. Is it possible to seek justice-- or to at least prevent her from wreaking another path of destruction? The answers will test Ko's human friendships as well as his own humanity...