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Alternative Titles

Japanese: グレイプニル
English: Gleipnir
German: Glepnir
More titles


Type: TV
Episodes: 13
Status: Finished Airing
Aired: Apr 5, 2020 to Jun 28, 2020
Premiered: Spring 2020
Broadcast: Sundays at 23:30 (JST)
Licensors: Funimation
Studios: Pine Jam
Source: Manga
Genres: ActionAction, MysteryMystery, SupernaturalSupernatural, EcchiEcchi
Demographic: SeinenSeinen
Duration: 23 min. per ep.
Rating: R - 17+ (violence & profanity)


Score: 7.001 (scored by 189854189,854 users)
1 indicates a weighted score.
Ranked: #39422
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #451
Members: 405,148
Favorites: 1,670

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Ranked #3942Popularity #451Members 405,148
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Shuuichi Kagaya is what one would consider an average high school student, but sometimes, he turns into a monster. He doesn't know how or why he got his abilities, only that he would prefer no one knows about them. One night, he finds a building ablaze with a girl trapped inside. Deciding to save her, he transforms and carries her to safety, but accidentally drops his phone.

The next day, the girl he saved—Claire Aoki—finds him and confronts him about his monster identity. She even goes so far as to push him off the school roof to prove her theory after Shuuichi denies her allegations. Desperate to save himself, he transforms, and Claire snaps a picture in order to blackmail him into telling her everything he knows about monsters, which, ironically, isn't much.

As it turns out, Claire has a secret of her own: she has been searching for her sister, who also became a monster. She enlists Shuuichi's help to track her down, but they aren't the only ones searching for answers.

[Written by MAL Rewrite]


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Episode Videos

Related Anime

Characters & Voice Actors


Sakurai, Takahiro

Sanbe, Tadanori

Yasumoto, Hiroki


Ishigami, Shizuka


Taichi, You

Kusaga, Isao

Yamamoto, Kazutomi


Yoneda, Kazuhiro
Nagasaki, Yukio
Sound Director
Shigehara, Katsuya
Episode Director, Storyboard
Kasai, Yoshinobu
Episode Director


Opening Theme

Apple Music
Amazon Music
Youtube Music
"Altern-ate-" by H-el-ical//

Jun 28, 2020
cigare (All reviews)
Are you ready?

I'm going inside. You're so sticky and wet. I'm going all the way in. It's so warm and fits just nicely. Does it hurt? We're one now.

I'm just a mere being wandering on the hellhole that is earth and as such, I don't deserve anything worthy of praise. But when Gleipnir knocked out my doorstep I straight away knew that this was the present I've always wanted. Yes, because Gleipnir is more than an anime - it's a new experience to be witnessed at least once in our dismal life. Something that would make our hearts go full uwu.

Gleipnir isn't the usual story. read more
Jun 28, 2020
Stark700 (All reviews)
Gleipnir, what could we ever do in a world without you? A whole lot actually. For instance, I don’t have to suffer every week watching some kid in a creepy mascot animal outfit running around. Watching Gleinpir was not a pleasant experience and by unpleasant, I mean the type of unpleasant that makes you want to turn the television off.

First of all, let’s ask ourselves, just what the hell is Gleipnir? It’s not a real word but a creation made by Sun Takeda. With that out of the way, you may probably want to take a closer glance at the synopsis because it’s full of read more
Jun 28, 2020
Pyro81300 (All reviews)

What if I told you an anime could be surprisingly well animated, have characters that get solid development, a fairly interesting story with plenty of mystery and action, a BANGER of a soundtrack, all of this combined...while still absolutely being edgy, ecchi trash? That is Gleipnir in a nutshell. It’s nothing amazing and there’s an argument for it just being a “surprisingly good ecchi show”, but I see it more as a genuinely good show with effort put in that just also has a ton of fanservice and innuendos. Having been caught up on the manga, without spoiling anything read more
Jun 28, 2020
NotCat (All reviews)
Why Gleipnir?
In Norse mythology, Gleipnir means the "open one". Gleipnir is the binding that holds the mighty wolf Fenrir (the first son of the God Loki). Fenrir was so strong, that even the Gods were afraid of the power of the wolf God. They attempted to bind Fenrir twice before with huge chains of metal, but Fenrir was able to break free both times. Therefore, they commissioned the dwarves to forge a chain that was impossible to break. To create a chain to achieve the impossible, the dwarves fashioned the chain out of six supposedly impossible to fashion things, and so the chain able to read more

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