Nazuna needs new blood for her cuddle-buddy business, and Ko is on the case! But he’s not the only one wandering the night looking for someone…

What does it mean to be a vampire? Why does Ko want to become one? A chat with a friend reveals Ko’s lack of answers to these all-important questions.

Ko's alarm bells go off when he meets Mahiru's new friend. Mahiru may not know what Kiku is, but Ko does.

A tense confrontation with Anko reveals an alarming secret: vampires have a weakness they didn't know about. Now, they all must decide their next move.