Let me get this straight: we definitely need more anime like Gleipnir with dark fantasy vibes along with some lewd fanservice scenes because 13 episodes were simply not enough.
In case you haven’t seen it, here is what the anime comes down to:
Shuichi is just a normal high school student living in a snooze-fest of a town until he saves a girl from some trouble, and BAM! He turns into a doggy with a big gun and a zipper down his back. Now the girl knows his secret and wants to use him to find her missing sis. It seems like his life just got a whole lot more interesting!
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Here are 7 anime similar to Gleipnir.
- Genres: Action, Sci-Fi
- Episodes: 1 (movie)
Like Gleipnir, Cencoroll is an anime that features characters who are able to control (or turn into) monsters and a girl who is willing to become “a co-pilot of the monster”.
Again, we are introduced to a boy-girl duo.
When a gigantic, unearthly monster suddenly looms on the skyline of a Japanese city, the expected occurs—the Japan Self-Defense Forces roll out the tanks while the public panics. Nobody knows what it is or where it came from, but Yuki, a bold and inquisitive teenage girl, has a secret but might be a useful clue. Her friend Tetsu has been clandestinely caring for a bizarre creature called Cenco, which will soon prove itself to have some remarkable, even impossible characteristics.
Another teenage boy, a stranger with some mysterious link to the monstrosity attacking the city, shows up, and his unwelcome interest in Tetsu’s pet snuffs out any doubt of a connection—and lights the fuse for the coming battle.
(Source: Rupert Bottenberg, Fantasia Genre Film Festival)
6. Darling in the FranXX
- Genres: Action, Drama, Mecha, Romance, Sci-Fi
- Episodes: 24
They are both about a girl/boy duo that has to ride the same “fighting vehicle” together and be in sync.
Pushed to the brink of extinction in a post-apocalyptic world, humanity is under constant threat from giant creatures known as klaxosaurs (叫竜, kyoryū), which are subdivided into at least four categories based on their size. Pushed to the brink of annihilation, parasites are raised to pilot giant mecha known as Franxx in boy-girl pairs. A male parasite is termed a “stamen” and a female parasite is referred to as a “pistil”.
Parasites are artificially-created and have short lifespans. A team of ten parasites is assigned to the experimental Squad 13 of Plantation 13. One of them, Hiro (Code:016), is a former pilot-candidate prodigy who can no longer synchronize with his partner and they both fail to complete the training program. While skipping his squad’s graduation ceremony, Hiro encounters Zero Two (Code:002), an elite Franxx pilot with klaxosaur blood, red horns, and an infamous reputation as the “Partner Killer”.
It is rumored that Zero Two’s partners are killed after pairing with her by the third time. Shortly after, a Klaxosaur attacks, disrupting Hiro’s graduation ceremony and leaving Zero Two’s partner killed in action. Despite the rumors, Hiro volunteers to become her new partner, or as Zero Two calls him, her “darling”.
5. Killing Bites
- Genres: Ecchi, School, Action, Sci-fi, Seinen
- Episodes: 12
Another ecchi seinen anime series like Gleipnir is Killing Bites.
RECOMMENDED: Top 10 Naughtiest Ecchi Anime Ever Created
The characters in these shows can turn into monsters and are “forced” to fight to the death.
Hitomi, the main character of the anime gets kidnapped by college students with diabolic intentions. Little do they know that Hitomi is actually a human-animal hybrid with exceptional combat abilities and she kills all of them except Yuya who sees her transformation and battle with a lion hybrid at an abandoned waste facility.
Beings like Hitomi have existed since ancient times and to this day these hybrids participate in The “Killing Bites” battles which are turning points in the Japanese economy. Yuya’s life is turned upside down and his whole existence is about to be linked to Hitomi’s ability to participate in the savage matches.
Watch on: Amazon Prime
4. Tokyo Ghoul
- Genres: Action, Mystery, Horror, Psychological, Supernatural, Drama, Seinen
- Episodes: 12
Similar to Gleipnir, Tokyo Ghoul is a fantasy seinen anime that features a guy whose life gets turned upside down when he suddenly becomes a monster. It’s like he has been thrown into this new reality and has to figure out how to survive.
The story is set in an alternate reality, where humans live alongside ghouls, flesh-eating creatures looking the same as normal humans.
The main protagonist, Ken Kaneki is a college student who almost dies after being attacked by his date who revealed herself as a ghoul. Kaneki is taken to the hospital and undergoes surgery while unconscious only to find out that he became a half-ghoul due to an organ transplant from the ghoul who had previously attacked him.
Kaneki has to face a new, harsh reality and adapt – if he wants to survive he has to deal with both humans and ghouls and most importantly with his inner conflict.
3. Guilty Crown
- Genres: Action, Superpower, Drama, Romance, Sci-fi, Mecha
- Episodes: 22
Guilty Crown and Gleipnir share a boy-girl duo with a male protagonist who had been a normal guy before his life completely changed and he got forced to choose the side and fight.
In the year 2039, ten years after the outbreak of the Apocalypse Virus Japan nation falls under the control of the CGQ, a military force that is supposed to restore order its own way. An organization named Funeral Parlor is the only one putting up a fight.
The main character, Shu is a high schooler who had led a normal life until he met a mysterious girl named Inori who also happened to be a member of the rebellious organization Funeral Parlor and as it seems, she is a key member.
In a sudden turn of events, Shu discovers that he has an ability that allows him to use weapons called voids (weapons that can be drawn out from persons as the manifestations of their personalities).
Shu is forced to decide whether he will leave his comfort zone and fight or just run away and watch from the distance.
2. Darwin’s Game
- Genres: Action, Mystery, Shounen
- Episodes: 11
The plot in both anime centers around an ordinary guy whose life changes completely and he gets involved in a fight for his life. They both have a badass female protagonist with a sadistic side.
The story revolves around Suou Kaname, who gets invited to try out a new cryptic mobile app game called Darwin’s Game, but soon after realizes that there is no way to quit the game.
Watch on: Crunchyroll
1. Mirai Nikki
- Genres: Psychological, Mystery, Thriller, Romantic, Supernatural, Shounen
- Episodes: 26
Mirai Nikki is the most similar anime to Gleipnir.
The male leads in both of these anime are portrayed as weak and vulnerable, but with a tender side.
On the other hand, the female leads are portrayed as strong and assertive, with a troubled past.
Without the help of the female leads, the male MCs would be in deep trouble.
Both anime have plenty of action and intense scenes, including scenes with a lot of violence and bloodshed.
Amano Yukiteru is a loner who attends high school and observes everything from his safe zone while he writes a diary on his cell phone, noting all the observations.
Yuki seems to have no friends but he finds himself often in conversation with his imaginary friends – The God of space and time named Deus and his servant.
What a shock will Yuki experience when he finds out that Deus is a real God, proving it by granting him a Random Diary that can predict future events around Yuki. That might seem like a blessing at first glance but only until he discovers that Deus granted additional diaries to the other 11 people as well. That might seem harmless but unfortunately for Yuki, the rollercoaster of kill or be killed begins due to Deus’ rules of the game – the last one standing becomes a God.
Soon after, Yuki’s strongest ally joins the game – a pink-haired girl called Yuno Gasai who is madly obsessed with Yuki and claims to love and protect him at any cost.