Adapted to Anime

Seventeen-year-old Hajime Nagumo is your average, everyday otaku. However, his simple life of pulling all-nighters and sleeping in school is suddenly turned upside down when he, along with the rest...

After a life-and-death struggle, Zack and Ray have finally made it through Floor B1. With the surface so tantalizingly close, all that’s left is to find a way up. They...

Thanks to Ray's breakdown, Zack is now forced to explore Floor B1 by himself. Yet as he continues to search the area, he finds that the many traps it hides...

Zack and Ray have finally arrived on the first floor of the basement, but Ray has a meltdown, losing consciousness before they can even make it through the first room....

Declared a witch by Gray, Ray is to be burned at the cross. Slipping in and out of consciousness, she sees someone who looks a lot like Zack, but it...

After finding a knife in Zack's room and bringing it back to Floor B2, Ray searches for Zack, but he's nowhere to be found. Gray is present, however, and he...

Longing to be useful to Zack, Ray heads deeper into Floor B2. An intriguing scent fills the air, and before she knows it, Ray finds herself drawn to its source-Father...

At long last, Cathy faces Zack and Ray in the execution room! Cathy hands Ray a pistol, trying to get her to turn on Zack, but will her plan backfire?...

Determined to expose the weakness in the vow binding Zack and Ray together, prison guard Cathy declares it's time for the two to bid each other farewell. To that end,...

Ray and Zack have arrived at Floor B3, home to the mad prison guard Cathy and her brand of "punishment". Driven into a corner by her many sadistic traps, will...

As amnesiac Ray and cutthroat killer Zack try to break out of the basement, they finally arrive at the graveyard that is Floor B4. There, a boy who's become quite...

When Rachel Gardner wakes up in the basement of an unfamiliar building, she finds herself face-to-face with Zack, a serial killer wrapped from head to toe in bandages. Narrowly escaping...

Yoko’s get-together with the demis comes to a conclusion, but will the world still be intact for the after party? Then, love is in the air as Takahashi-sensei gets ready...

They were once feared and forced to live in the shadows. But as modern society grew more enlightened, human beings began to realize that monsters like succubi, dullahans, and vampires...

Tetsuo Takahashi’s quest to understand the demis around him forces him to confront questions both cosmic and personal. He goes to Yoko’s house to meet her live-in spirit; does Zashiko...

Summer has finally arrived for Takahashi-sensei and the demis, and they’re determined to make memories despite their challenges. From telling scary stories to finding creative ways to cool off, the...

As high school Biology teacher Tetsuo Takahashi has gotten to know each of his demi students (and succubus colleague), he’s realizing more and more how many unique challenges these girls...

From making sure Hikari the vampire has what she needs when the urge to bite hits, to helping Kyoko the dullahan get home in the rain, high school biology teacher...

It’s one thing after another for the Demis and their teacher, Takahashi-sensei! From finding out how vampires really feel about garlic, to what it means to be a Snow Woman,...

Call them “demis”! ... Vampires, dullahans, succubi, snow women. These are just a few of those beings once known as “demi-humans,” and high school Biology teacher Testsuo Takahashi has always...