The Demons Are Planning Something Good Anime Sets 2027 Premiere With Teaser Visual and Main Cast
The Demons Are Planning Something Good is officially heading to television in 2027, bringing Takuji Kato and Gashigashi’s chaotic demon army comedy to anime with a newly revealed teaser visual, main cast and production staff.
The anime adapts the manga known in Japanese as Ma no Mono-tachi wa Kuwadateru, a fantasy comedy about the Demon Lord Army’s behind-the-scenes development team. Instead of focusing on heroes charging toward the final boss, the story turns the camera around and asks a much stranger question: who designs all the bizarre traps, magic devices and humiliating obstacles adventurers encounter on the way?
The answer is Lord Mercysnare and his team.
Junichi Suwabe will voice Lord Mercysnare, the head of the Demon Lord Army Development Department. Wakana Kuramochi will voice Letze, his hardworking assistant, while Haruka Shiraishi will voice Merisha, an up-and-coming adventurer who keeps getting caught up in the demons’ schemes.
The anime will be produced by TNK, with Takuya Asaoka directing, Kazuyuki Fudeyasu handling series composition and Hiraku Kaneko designing the characters.
A 2027 TV Anime for a Chaotic Demon Army Comedy
The Demons Are Planning Something Good is scheduled to air as a TV anime in 2027.
A specific premiere date has not yet been announced. The production committee has also not revealed the broadcast season, episode count, opening theme, ending theme or international streaming platform.
For now, the major confirmed details are the 2027 broadcast window, the teaser visual, the main cast and the core staff.
The announcement is especially fun because this is not a standard fantasy anime about chosen heroes, legendary swords or defeating the Demon Lord. Instead, it is a workplace-style fantasy comedy about the monsters behind the traps.
Every dungeon has hazards. Every adventurer has faced suspicious slime, strange devices, cursed tools or overly specific monster attacks. This series imagines that those encounters are not random at all. They are the result of research, meetings, testing, obsession and far too much creative enthusiasm from the Demon Lord Army.
What Is The Demons Are Planning Something Good About?
The Demons Are Planning Something Good follows the members of the Demon Lord Army as they develop new ways to stop, scare and embarrass human adventurers.
The story is centered on Lord Mercysnare, a high-ranking demon who leads the Demon Lord Army Development Department. His job is not simply to fight heroes directly. Instead, he researches and supervises the creation of traps, monster strategies and magical devices designed to break adventurers before they ever reach the Demon Lord.
Working beside him is Letze, his assistant, who helps keep the department functioning while dealing with the absurd demands and strange experiments of demon research.
On the human side, Merisha is an adventurer said to be close to earning hero-class recognition. Unfortunately for her, she is also exactly the kind of promising adventurer the Demon Lord Army wants to test its ideas on.
The result is a ridiculous fantasy comedy about monsters treating adventurer humiliation as a serious research field.
The Comedy Comes From Fantasy Logistics
The funniest idea behind The Demons Are Planning Something Good is that dungeon traps require labor.
In most fantasy stories, traps simply exist. Adventurers enter a dungeon, step on a plate, fall into a pit, get attacked by slime or trigger some cursed magical device. The audience rarely asks who designed that trap, who tested it, who approved the budget or who decided that this was the best way to stop a hero.
This series turns that invisible labor into the main joke.
The Demon Lord Army is not only an evil force waiting at the end of the journey. It is an organization. It has departments, specialists, experiments and people who are deeply invested in the quality of their work.
That workplace angle gives the comedy a fresh identity. The demons may be planning terrible things for adventurers, but they approach those plans with the seriousness of professionals trying to innovate in a very strange industry.
Lord Mercysnare Leads the Demon Lord Army Development Department
Lord Mercysnare is the central demon behind the anime’s absurd premise.
He serves as the head of the Demon Lord Army Development Department and supervises multiple branches connected to trap research and adventurer countermeasures.
What makes him funny is the seriousness with which he treats his work. He is not simply a brute who wants to crush heroes with raw power. He is a researcher, planner and enthusiast who believes in the potential of carefully designed demonic schemes.
His focus is not only physical defeat. The series emphasizes emotional reactions, embarrassment, fear and the strange magical energy that can come from human adventurers being pushed into humiliating situations.
That makes him sound sinister, but the tone is comedic. Lord Mercysnare’s intensity turns absurd trap design into something like an academic discipline.
Junichi Suwabe voices Lord Mercysnare, a fitting choice for a character who needs to sound dramatic, theatrical and completely committed to ridiculous ideas.
Letze Is the Assistant Trying to Keep the Chaos Moving
Letze works as Lord Mercysnare’s assistant in the Demon Lord Army’s trap research and development room.
Her role is important because a character like Lord Mercysnare needs someone who can support, react to and sometimes balance his bizarre enthusiasm. Letze helps turn the series from a one-note joke into a workplace comedy with character dynamics.
According to the official character description, Letze is not good at smiling, enjoys eating and has a reason for hiding her true species.
That last detail suggests there may be more to her than simple assistant comedy. While the anime’s main appeal is clearly its absurd trap development premise, Letze’s background may give the story additional character flavor as it progresses.
Wakana Kuramochi voices Letze. In her cast comment, she emphasized Letze’s hardworking nature and her role in helping bring the team’s highly specific experiments to success.
Merisha Is the Adventurer Caught in the Demons’ Plans
Merisha is an up-and-coming adventurer rumored to be close to receiving hero-class recognition.
In a more traditional fantasy series, that would place her on the path to glory. She would train, gather allies, defeat monsters and perhaps eventually challenge the Demon Lord.
In this series, it makes her a perfect test subject.
Merisha is described as straightforward and easily carried away, which means she often falls into the Demon Lord Army’s traps. That makes her both a promising adventurer and a valuable source of data for the demons’ schemes.
Her presence is important because the story needs a human point of view. The demons may be treating traps as creative research, but someone has to actually experience those traps for the comedy to land.
Haruka Shiraishi voices Merisha. Her comment describes the character as someone aiming to become a proper hero, even though the demons keep dragging her into embarrassing situations.
The Main Cast Revealed So Far
The first main cast members have been announced:
- Junichi Suwabe as Lord Mercysnare
- Wakana Kuramochi as Letze
- Haruka Shiraishi as Merisha
This lineup gives the anime a strong starting point. Suwabe brings theatrical presence and sharp comic potential to Lord Mercysnare. Kuramochi’s Letze can provide the assistant energy needed to keep the Demon Lord Army’s experiments moving. Shiraishi’s Merisha gives the human side a bright, reactive adventurer who can be both heroic and hilariously unlucky.
Additional cast members have not yet been announced.
TNK Handles Animation Production
Animation production will be handled by TNK.
This is an important detail because The Demons Are Planning Something Good will depend heavily on timing, facial expressions and the visual exaggeration of ridiculous fantasy situations.
The premise involves traps, magical devices, monster experiments and comedic reactions. That means the anime needs more than static dialogue. It has to make the demons’ planning feel energetic and make the adventurers’ reactions funny without becoming visually repetitive.
Because the story is built around absurd inventions and schemes, animation can add a lot to the comedy. A trap that is funny on the page can become even funnier with movement, sound effects, awkward pauses and dramatic overreaction.
The anime’s success will likely depend on how well TNK can turn the manga’s timing into lively visual comedy.
Takuya Asaoka Directs the Anime
Takuya Asaoka will direct the series.
Direction will matter because the anime needs to balance risqué comedy, workplace absurdity and fantasy adventure without losing control of its tone.
The premise is intentionally provocative, but the core appeal is not only shock value. It is the idea that demons have turned adventurer countermeasures into a serious development project. The best version of the anime will make viewers laugh at the process: the meetings, the testing, the enthusiasm, the failures and the bizarre logic of the Demon Lord Army.
Asaoka’s job will be to keep that rhythm sharp.
If the pacing is too slow, the jokes may feel repetitive. If the direction is too chaotic, the audience may lose the cleverness of the premise. The right balance should make every new demonic plan feel like a ridiculous product pitch from people who genuinely believe they are doing important work.
Kazuyuki Fudeyasu Handles Series Composition
Kazuyuki Fudeyasu is in charge of series composition.
This role is especially important for a comedy adaptation because the anime must decide how to structure the manga’s jokes, chapters and recurring setups into television episodes.
The Demons Are Planning Something Good has a premise that can support many short scenarios: a new trap, a new monster idea, a new adventurer, a new meeting or a new experiment gone wrong.
However, a TV anime needs rhythm across episodes. It must know when to introduce new characters, when to let the Demon Lord Army’s workplace comedy breathe and when to shift attention to Merisha or other adventurers caught in the chaos.
Fudeyasu’s composition will help determine whether the anime feels like a collection of sketches or a fully shaped fantasy comedy.
Hiraku Kaneko Designs the Characters
Hiraku Kaneko is responsible for character design.
Character design will be important because the anime needs to make both sides of the story visually distinct.
The demons should feel like members of a fantasy evil army, but also like eccentric office workers, researchers and specialists. They need enough personality to make their planning sessions fun before any trap is even activated.
The adventurers, especially Merisha, need to feel heroic enough for the joke to work. If Merisha looks and acts like a proper rising hero, then watching her become the target of absurd demon schemes becomes much funnier.
The teaser visual already suggests that the anime is leaning into colorful fantasy comedy rather than grim dark fantasy. That is the right direction for a series where the Demon Lord Army’s evil plans often feel more like chaotic research presentations than world-ending villainy.
The Main Staff Behind the Anime
The currently announced staff includes:
- Original Creator: Takuji Kato
- Manga Artist: Gashigashi
- Director: Takuya Asaoka
- Series Composition: Kazuyuki Fudeyasu
- Character Design: Hiraku Kaneko
- Animation Production: TNK
- Production: Demon Lord Army Development Department
Additional staff members, including music composer, sound director, art director, color designer and photography director, have not yet been announced.
The Manga Began From a Viral Web Concept
The Demons Are Planning Something Good began as a manga concept by Takuji Kato, later developed with artwork by Gashigashi.
The manga is published by KADOKAWA under the Dragon Comics Age label and is serialized through the DraDra Sharp platform.
The story’s origin helps explain its strange energy. It feels like a fantasy gag idea that expanded into a full workplace comedy: instead of asking how heroes defeat dungeons, it asks how dungeons are engineered to defeat heroes.
That reversal is simple but effective.
Many fantasy comedies parody the hero’s journey from the hero’s point of view. This one makes the monsters the office workers behind the scenes. The demons are still trying to stop humanity, but the comedy comes from how professional, passionate and oddly sincere they are about the job.
Yen Press Publishes the Manga in English
The manga is also available in English through Yen Press under the title The Demons Are Planning Something Good!
The English release presents the series as a fantasy comedy about the Demon Lord’s underlings devising new ways to strike fear into adventurers’ hearts. The humor comes from treating classic fantasy hazards as the product of careful demonic planning.
For English-speaking viewers, the anime announcement may bring more attention to the manga before the 2027 broadcast.
This is the kind of series that can benefit from anime exposure because its concept is immediately understandable. Even someone unfamiliar with the manga can grasp the joke quickly: the demons are not just waiting in the dungeon, they are actively developing the dungeon’s worst ideas.
Why the Premise Feels Fresh
The fantasy genre has spent decades following heroes into dangerous dungeons.
Adventurers enter, monsters attack, traps spring and treasure waits somewhere in the darkness. The hero side is familiar, but the villain infrastructure is usually invisible.
The Demons Are Planning Something Good turns that invisible infrastructure into the main attraction.
Every trap becomes a project. Every slime becomes a design choice. Every adventurer’s embarrassing defeat becomes feedback for future development. The Demon Lord Army is not only evil, it is organized.
This is why the premise feels fresh. It does not need to reinvent fantasy worlds completely. It only needs to look at the most familiar parts of them from the wrong side of the dungeon door.
A Comedy About “Evil” Professionals
One of the funniest contradictions in the series is that the demons are technically doing villainous work, but they approach it with the dedication of professionals.
They brainstorm. They research. They test. They debate the effectiveness of their methods. They care about quality.
This creates a strange kind of workplace comedy.
Lord Mercysnare and Letze may be working for the Demon Lord Army, but their daily struggles are oddly relatable. They have difficult goals, strange coworkers, demanding standards and projects that may or may not work as intended.
The fantasy context makes everything absurd, but the workplace structure makes the humor easy to understand.
Anyone who has seen people take a ridiculous job far too seriously can understand the appeal of demons passionately discussing trap development.
Merisha Gives the Story a Heroic Counterpoint
Merisha’s role is important because a comedy like this needs someone on the receiving end of the demons’ plans.
If the story only followed the Demon Lord Army, the traps might become abstract jokes. Merisha gives those schemes a human target and emotional counterpoint.
She wants to be a proper hero. She is considered a promising adventurer. She has the potential to become the kind of person who could seriously threaten the Demon Lord Army one day.
That makes her exactly the type of adventurer the demons want to study.
Her tendency to fall for schemes also creates a running comedic rhythm. She is not weak enough to be irrelevant, but she is straightforward enough to get caught in situations that more cautious adventurers might avoid.
The anime can use her to parody heroic fantasy while still letting her remain likable.
The Teaser Visual Sets the Tone
The teaser visual gives the first clear look at the anime’s tone.
Rather than presenting the series as dark fantasy, the visual leans into bright, cheeky comedy. The characters are positioned in a way that highlights the conflict between the Demon Lord Army’s schemers and the adventurer caught in their plans.
This is important because The Demons Are Planning Something Good needs viewers to understand its tone immediately.
The premise includes traps, monsters and humiliation-based magic, but the anime is not being sold as horror or serious dark fantasy. It is a chaotic comedy about absurd demonic research.
The visual’s job is to tell viewers that the series is playful, mischievous and ridiculous before they even hear a line of dialogue.
The Series May Appeal to Fans of Fantasy Parody
The Demons Are Planning Something Good could appeal strongly to viewers who enjoy fantasy parody and workplace comedy.
It has the fantasy setting, the Demon Lord Army, adventurers, traps and magical experiments. But instead of following a heroic quest, it focuses on the operational side of evil.
That makes it a good fit for fans who enjoy seeing familiar genre conventions turned sideways.
It also has a comedic edge that makes it different from more wholesome fantasy workplace stories. The demons are not running a cozy inn or trying to live peacefully in a human town. They are actively trying to create embarrassing and effective countermeasures against adventurers.
That mischievous energy is the series’ main identity.
The Anime Will Need Strong Comic Timing
For this adaptation to work, comic timing will be everything.
The premise can be funny on paper, but the anime must turn it into rhythm: setup, explanation, overconfident testing, unexpected failure and exaggerated reaction.
Voice acting will be especially important.
Lord Mercysnare needs to sound dignified even when discussing absurd ideas. Letze needs to carry the energy of someone trying to do her job properly in a ridiculous department. Merisha needs to sell both heroic ambition and comedic embarrassment without becoming one-dimensional.
The cast revealed so far gives the anime a strong foundation for that kind of performance.
What Has Not Been Announced Yet?
Several important details about The Demons Are Planning Something Good remain unknown.
The anime is confirmed for 2027, but the exact premiere date has not been announced.
The broadcast season, Japanese TV schedule and total episode count have not been revealed.
The opening and ending theme songs have not been announced.
International streaming information has not been confirmed. Although Crunchyroll reported the news, that does not automatically confirm simulcast availability for the anime.
Additional cast members and more detailed production staff may be announced in future updates.
Why The Demons Are Planning Something Good Could Stand Out in 2027
The 2027 anime lineup is already filling with sequels, adaptations and major fantasy titles, but The Demons Are Planning Something Good has a clear way to stand out.
Its concept is easy to understand in one sentence: the Demon Lord Army’s trap developers are the real stars.
That is a strong comedic hook.
It also arrives at a time when fantasy anime has become extremely familiar to viewers. Audiences know the hero, the demon lord, the dungeon, the slime, the trap and the final boss. This series takes those familiar pieces and asks viewers to laugh at the people maintaining them behind the scenes.
If the anime can balance risqué humor with sharp timing and strong character chemistry, it could become one of the more unusual fantasy comedies of 2027.
When Will The Demons Are Planning Something Good Premiere?
The Demons Are Planning Something Good will premiere as a TV anime in 2027.
The exact premiere date has not yet been announced.
The anime will be directed by Takuya Asaoka, with series composition by Kazuyuki Fudeyasu, character design by Hiraku Kaneko and animation production by TNK. The main cast includes Junichi Suwabe as Lord Mercysnare, Wakana Kuramochi as Letze and Haruka Shiraishi as Merisha.
The story follows the Demon Lord Army Development Department as it researches and creates new ways to stop adventurers before they can reach the Demon Lord.
Heroes may think a dungeon trap is just bad luck.
They have no idea how many meetings, experiments and demonic passions went into making it work.
In 2027, The Demons Are Planning Something Good will reveal the chaotic workplace behind fantasy’s strangest hazards, proving that even evil needs research and development.
