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Mato Seihei no Slave cover

Is Mato Seihei no Slave good to watch with a friend?

Easy to drop in. Mato Seihei no Slave (Demon Slave: The Chained Soldier) is a TV series from Winter 2024 by Seven Arcs Co.,Ltd.: 12 episodes, about 4.6 hours in total, finished, 6.9/10 across the listing sites.

actionadventuremanga adaptationcomedyurban fantasydark fantasydemonsdrama

Watching it together: easy to drop in. Comedy or action in a short run: you can start tonight without a plan, and a missed episode does not ruin it. about 4.6 hours for the run, 6 evenings at two a night. Rule: episodic, slice-of-life, or comedy/action ≤ 26 episodes → easy to drop in.

This verdict comes from rules over the title's format, length and tags, not from a review — the rule that fired is named above.

The facts

Type
TV series
Episodes
12
Episode length
23 min
Total time
about 4.6 hours — a weekend
First aired
Winter 2024
Status
Finished
Studio
Seven Arcs Co.,Ltd.
Score
6.9/10 across the listing sites
Tags
action, adventure, manga adaptation, comedy, urban fantasy, dark fantasy, demons, drama, dystopian, ecchi, fantasy, harem, martial arts, mythology, isekai, love triangle, military, monsters, nudity, revenge, romance, shounen, superpowers, supernatural, swordplay, violence

Data from anime-offline-database (ODbL) as of 2026-07-04; the score is the median of the scores the anime listing sites give it, on a 1–10 scale. Also listed as: Slave of the Hell Soldiers; Demon Slave; Demon Slave: Lo schiavo delle combattenti in Mato; Slave of the Magic Capital's Elite Troops.

Do you and a friend both want to watch Mato Seihei no Slave?

Queue Up reads two public AniList lists and shows every anime you both have on Planning — with Mato Seihei no Slave flagged if it is one of them — then picks tonight's with a weighted roll or a bracket.

Do you and a friend both want to watch Mato Seihei no Slave?Free, no login — reads public AniList lists.

Or open it on AniList or MyAnimeList.

Related anime

Mato Seihei no Slave 2
TV series · 12 ep · 2026 · 7.61/10

More like this: action · adventure · manga adaptation · comedy · urban fantasy · dark fantasy · demons · drama · dystopian · fantasy · harem · martial arts · mythology · isekai · love triangle · military · monsters · revenge · romance · shounen · superpowers · supernatural · swordplay.

Quick answers

How long does it take to watch all of Mato Seihei no Slave?
About 4.6 hours for all 12 episodes at 23 min each — a weekend; at two episodes a night that is 6 evenings.
How many episodes does Mato Seihei no Slave have?
12 episodes of 23 min.
Is Mato Seihei no Slave finished?
Yes, Mato Seihei no Slave is finished (12 episodes), so you can watch the whole thing at your own pace.
Is Mato Seihei no Slave good for a group?
Yes. Mato Seihei no Slave is tagged action, comedy, the tags that survive a room full of people talking over the screen.
Where is Mato Seihei no Slave listed?
Mato Seihei no Slave is on AniList (id 141821) and MyAnimeList (id 50392); Queue Up keys it by its AniList id and shows it when it is on either of your lists.

Queue Up is a free tool: enter two AniList usernames and it ranks the anime you both want to watch, rolls one for tonight, runs a bracket to settle it and finds new anime that fit both of you. List data from AniList; title data: anime-offline-database (ODbL), dataset of 2026-07-04; page updated 2026-07-04. Not affiliated with AniList or MyAnimeList. Queue Up is a Somebody Decide program. How it works · Legal & privacy · All lists