Slave of the Demon Capital, airing from January 2024, is a harem action battle series set in a modern world threatened by monsters emerging from another dimension. Based on a manga serialized in Shonen Jump+, it features captivating female characters and thrilling supernatural battles. This time, we'll summarize the worldview, setting, and story of Slave of the Demon Capital!
The emergence of the "Demon Capital," where terrifying monsters roam
Decades before the start of the story, mysterious gates appeared all over Japan, revealing an alternate dimension the size of Tokyo. Among them, monsters known as Yomi-shuki roam the land, and it's said that if one appears in the real world, dozens of people will die. Gates to the Demon City sometimes appear suddenly throughout the city, and when ordinary people get lost in the Demon City or when the demons appear in the streets, this is known as a Demon City disaster.
The emergence of the "Demon City" has transformed the modern world into a society where women are superior to men.
The emergence of the "Demon City" posed a threat to humanity, but within the Demon City lies a fruit known as the "Peach," which could counter this threat. Those who ate the peach would awaken supernatural powers, granting them enough strength to fight against the ugly demons. However, for some reason, men were unable to benefit from the peach's effects, completely reversing the power dynamic between men and women. As a result, modern society has become one in which simply being a man penalizes women.
Establishment of the All-Female Combat Unit, the "Maboudai" (Demon Defense Force)
To combat the emergence of the Demon City and the onslaught of the ugly demons, the government established the all-female "Maboudai," a unit blessed by the peach. There are nine units, numbered from one to ten, excluding the unlucky number four. Their main duties are dealing with disasters in the Demon City and eliminating ugly demons, but they also occasionally eliminate terrorists attempting to poach peaches. Since men cannot become members of the Demon Defense Force, our protagonist, Yuki Wakura, is employed as a dormitory caretaker.
The Protagonist, Yuki Wakura, is an Ordinary Person!?
Our protagonist, Yuki Wakura, is a typical high school boy in his third year, about to graduate. In this work, it's common for boys to find employment after high school, and Yuki vaguely senses that he too will follow that path. However, after entering another world due to the Demon Capital disaster, she is attacked by an ugly demon. She is rescued just in time by Kyoka Uzen of the Demon Defense Force. However, Kyoka's supernatural power is far from being a one-man army: the "Slave of Eternity."
Yuki Awakens Through the "Slave of Eternity"
"Slave of Eternity" is the ability to enslave and strengthen those it enslaves. Kyoka uses this ability to enslave ugly demons, but it's weak and a failure, as both she and others acknowledge. However, Yuki, whom Kyoka enslaves to escape a difficult situation, undergoes a dramatic change in appearance and displays combat abilities far beyond Kyoka's imagination. By chance, he defeats the ugly demon with the power of a thousand men.
The price of the "Slave of Infinite Chains"? If you prove useful, you'll receive a forced reward!
Yuki's awakening gradually reveals the usefulness of the "Slave of Infinite Chains," which were previously thought to be useless. However, it turns out that the power of the "Slave of Infinite Chains" requires a certain price to be paid when used. The price is that if the slave proves useful, she must be rewarded in proportion to his or her contribution. Furthermore, once this price is activated, it must be compulsory. While Yuki commanded the Ugly Demon, she would be rewarded in the form of meat, but that is not the price that Kyoka truly desires. Kyoka must reward Yuki, no matter how embarrassing it may be.
Yuki Wakura Gets a Job as a Dormitory Manager for the Seventh Division
Yuki's "Slave of Infinite Chains," which she thought was a useless ability, turns out to be useful in an unexpected way, and Kyoka scouts Yuki and invites her to the Seventh Division. However, since boys are not eligible to join the Demon Defense Force, Yuki is hired as the dormitory manager for the Seventh Squadron. Naturally, there are other members of the corps besides Kyoka, all of whom are egocentric and eccentric. Furthermore, some of the girls seem to treat the boys like slaves, and Yuki lives with them, constantly being manipulated by them.
A New Enemy? The Appearance of a Mysterious Humanoid Female Ugly Demon!
One day, the Seventh Squadron, which fights ugly demons every day, encounters a humanoid female ugly demon who is accompanied by the one-horned ugly demon that destroyed Kyoka's hometown. She was able to eat multiple peaches, of which one person would normally only be able to receive one, without any problems, and her appearance resembled a mix between a human and an ugly demon. For some reason, the humanoid ugly demon harbors hostility towards the Demon Defense Force and attacks them, which leads Yuki to deduce that the ugly humanoid demon might be her sister, who went missing in the Demon City disaster several years ago.
Kyouka isn't the only one who can use the "Slave of Infinite Chains"!?
Initially, using the "Learning" ability possessed by Seventh Squadron member Tonohi Marin, she copied Kyoka's "Slave" powers and enslaved Yuki. This allowed other people to use the "Slave" powers and manifest forms different from Kyoka's. Later applications revealed that the "Slave" powers could be lent to others, and that the form they took varied depending on the individual who activated them.
Oh, whether you copy or lend, the reward is mandatory.
When it's discovered that someone other than Kyoka can use the "Slave of Infinite Chains" ability to enslave Yuki, it becomes clear that the ability has incredible potential for growth and versatility. When gang members other than Kyoka use the "Slave of Infinite Chains," they are able to use the ability according to the situation, and Yuki ends up pairing up with various gang members. However, the reward that comes with the price cannot be resisted, no matter how powerful or proud a person, and they will never be released unless they receive the reward.
Various members of the Demon Defense Force appear starting with the friendly matches
The Demon Defense Force has a system called the Demon City Friendly Match. While originally intended to settle disputes, it can also be used as a simple friendly match. After the friendly match, members of the Demon Defense Forces other than the Seventh Squadron begin appearing one after another. Each girl is unique and quirky. Some even appear so attractive that they threaten Kyoka, the heroine...
What is the purpose of the opposing, humanoid demons?!
The true identity of the humanoid ugly demons is that of a woman who wandered into the Demon City and transformed after eating a peach. Eating a peach in this world awakens supernatural powers without transforming into a humanoid ugly demon, but this rarely happens when eating a peach in the Demon City. In other words, they were originally human, and while they can be somewhat aggressive, they are still able to communicate. However, they harbor hostile intentions toward the Demon Defense Force. This is because they were effectively imprisoned and used as experimental animals in a research facility called the Onmyo-ryo.
The mastermind behind it all finally appears! The Hachiraijin!
As the battle with the humanoid ugly demons reaches its climax, the mastermind behind the demons finally appears. These self-proclaimed gods call themselves the "Eight Thunder Gods" and display their overwhelming power. True to their name, there are eight of them, and they appear to have a brotherly relationship. While their true nature remains a mystery, and their full extent is yet to be revealed, they are the masterminds of this work, operating in the shadows with the goal of destroying humanity, and are the strongest enemies to be defeated.
Mad Defense Force captains are also making appearances one after another!
After reconciling with the humanoid ugly demons and the appearance of the Hachiraijin, Kyoka becomes strongly conscious of becoming the leader of the Magic Defense Force. The entire battle against the humanoid ugly demons was caused by the country's inhumane acts, which were committed with no regard for the means. Kyoka aims to change this organization, but a succession of Magic Defense Force captains who become her rivals also appear.
[Madou Seihei no Slave] Worldview, Setting, and Story Summary
Here's a summary of the worldview, setting, and story of the 2024 Winter anime "Madou Seihei no Slave"! It's a fascinating work with two elements: intense, tense battle scenes and rewards from adorable girls! It's easy to understand, entertaining, and a classic yet erotic story, so I think it's a work that will appeal to everyone! Please give it a watch!
