Season 1
Kou Yamori is a middle school student who struggles with grasping the complex concept of love. Plagued with insomnia due to his idleness, Kou begins roaming the lonesome streets at night. One night, Kou encounters a bizarre girl named Nazuna Nanakusa who believes that people stay awake during the night because they are dissatisfied with how they spent their day and cannot rest until they release their inhibitions. Nazuna offers to help Kou with his sleep issues and invites him over to her place, where she convinces him to share a futon with her. Feeling uncomfortable, Kou only pretends to doze off—which is when Nazuna suddenly bites his neck, revealing herself to be a vampire! While Kou thinks the bite will turn him into a vampire, the specifics of transforming are not that simple. In order to change, he must be bitten by someone he truly loves. Ready to let go of his dreary mortal life, Kou decides on a new goal: he will fall in love with Nazuna and become a vampire himself.
Episodes
1st Night: First Flight
A chance encounter with a stranger introduces Ko to a nocturnal life. Ko follows her and why shouldn’t he? The night is still young.
2nd Night: Do You Do LINE?
How can you fall in love with a vampire when you can’t even track them down!? Nazuma remains frustratingly elusive, but Ko may have a nostalgic solution to this new problem.
3rd Night: A Lot Came Out
When can you start calling someone a friend? What even IS friendship, anyway? As Ko reconnects with a classmate, questions arise he isn’t sure he knows how to answer.
4th Night: Isn't This a Tight Squeeze?
Three’s a crowd when Ko invites Akira to hang out with him and Nazuna late one evening.
5h Night: Well, That’s a Problem
How does Nazuna make money, anyway? Ko is about to get the inside scoop on her (very suspicious) business, but first he’ll need to make sense of his complicated emotions.
6th Night: Might as Well Have Fun
Ko doesn’t need a mirror to see his reflection. It’s staring right back at him in the form of Nazuna’s latest client.
7th Night: Reproduce
Boredom drove Ko into the night. Boredom drove Ko’s new acquaintance to killing time in her own way. She and Ko seem very similar… perhaps TOO similar for comfort.
8th Night: All of Us
Ko thought he had all the time in the world, but the revelation of an unexpected deadline changes everything. Hopefully his friends (new and old alike) will have some advice.
9th Night: No Fair
Seri is extremely popular, but popularity isn’t all it’s cracked up to be when one of her human paramours develops feelings she isn’t ready to deal with.
10th Night: Enlarge the Peeping-Tom Photos
It’s not all sparkles and hearts at the maid café where Midori works. Someone is creeping on a certain maid, but uncovering the interloper isn’t as easy as it looks…
11th Night: Do You Know What a Vampire Is?
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…
12th Night: My Mom’s Out Tonight
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.
13th Night: Call of the Night
The night feels distant. Ko isn’t sure how to close that gap.