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...

Haruka tries to convince Ko to do the right thing, using both persuasion and deadly force. In this final volume, knowing their love could kill them both, Nazuna and Ko spend one last romantic night together. When dawn breaks, will they have the courage to part ways forever? What alternative do they have?