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Alternative Titles

Synonyms: Sacks&Guns!!, Sakugan Labyrinth Marker, Project ANIMA, 削岩ラビリンスマーカー
Japanese: サクガン
English: Sakugan
More titles


Type: TV
Episodes: 12
Status: Finished Airing
Aired: Oct 7, 2021 to Dec 23, 2021
Premiered: Fall 2021
Broadcast: Thursdays at 23:30 (JST)
Licensors: None found, add some
Studios: Satelight
Source: Novel
Genres: ActionAction, AdventureAdventure, Sci-FiSci-Fi
Themes: ChildcareChildcare, MechaMecha
Duration: 23 min. per ep.
Rating: PG-13 - Teens 13 or older


Score: 6.511 (scored by 3240832,408 users)
1 indicates a weighted score.
Ranked: #67362
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #2070
Members: 101,622
Favorites: 273

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Ranked #6736Popularity #2070Members 101,622
Add to My List
Episodes: /12


The "Labyrinth" is an expansive space deep underground where humans live in clusters known as "colonies." Over the years, the surface has become a distant memory—even perhaps only a fantasy to those who have never experienced its wonders.

Making sure humanity survives the harsh conditions of the underground, a colony's citizens can take on a variety of specialized jobs. These include "Workers," who mine precious ore to fuel the colonies, and "Markers," who journey into the Labyrinth's surprisingly lush environment to bring back information that eases navigation. However, humanity also faces a threat to its existence—creatures called "kaijuu" whose sizes range from that of a small child to an enormous building, and are hostile to any human they see. Moreover, kaijuu that are large enough can force their way into the colonies, further increasing their threat level.

Memenpu is a nine-year-old college graduate whose inventions have greatly benefitted the Workers in her local colony. Recently, however, she has been dreaming of a place with a neverending ceiling not bound by bedrock. These aspirations fuel her desire to become a Marker and explore the Labyrinth's vast unknown in search of such a fantastical place. Despite her father Gagumber's vehement disagreement, a certain incident with the kaijuu jumpstarts a dangerous yet exciting adventure that will surely alter humanity's course forever.

[Written by MAL Rewrite]

Characters & Voice Actors


Uchiyama, Kouki


Koyama, Tsuyoshi


Hayami, Saori


Watada, Misaki


Hosoya, Yoshimasa



Opening Theme

Apple Music
Amazon Music
Youtube Music
"Koukotsu Labyrinth (恍惚ラビリンス) " by Masaaki Endoh

Ending Theme

"Shine " by MindaRyn

Episode Videos


Dec 23, 2021
Sakugan, is sort of an anomaly, as in the type of show that takes off on an unique adventure in a science fiction realm. It's also unique in that the anime is based from a story contest novel that ultimately became what we see today. From the science fiction category, Sakugan is really something an underrated gem I don't see people talk about much this year.

At first glance, the premise doesn't sound too special and seems like something anyone could come up with. A science fiction adventure usually depends on characters that are worth investing into and an imaginative setting. Memenpu and Gagumber are two ...
Dec 23, 2021
Mixed Feelings
The show started off strong with an interesting premise and fell completely flat once I realized the writers don’t know what the meaning of character development is. Memempu starts tolerable, quickly turns to unbearable and stays firmly planted in that region throughout the show. Gagumber is barely any better and his dynamic with Memempu is horrendously annoying. It gets no better throughout the season. I only gave it a five because other than hating how the two of them interact the show still had some promise and hopefully season 2 shows us some massive changes to the characters. The other side characters are aight, but ...
Dec 23, 2021
In order to understand what Sakugan: Labyrinth Marker a.k.a Sacks&Guns!! is all about, we need to know the origin story of how it's all conceived: Project ANIMA. This is a large-scale project in which DeNA's MangaBox, Nippon Cultural Broadcasting, Sotsu Co. Ltd., and MBS (Mainichi Broadcasting System) jointly produce 3 original TV anime series made respectively by studios Satelight, J.C.Staff and Doga Kobo, written by the general public in 3 categories: Science-Fiction/Robot, Alternate World/Fantasy and Kids/Game (you can see the respective studio-genre correlation) that's judged by the various Project ANIMA teams, to help discover hidden talent and help propel the anime industry forward.

This is the ...

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