Antisocial, dorky boy seeks fun-loving, sexy vampire for blood-sucking and transforming into her minion.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...Our human friends are attacked by a mysterious male vampire. Luckily?or unluckily, depending on your point of view?Ko?s half-vampire mode is growing ever more powerful. Who turned the attacker, and what is he after? No sooner are these questions answered than new ones arise as a second attacker arrives on the scene?and she?s targeting both humans and vampires!