Movies and TvShows featuring "demon-king" theme.

An elf and her friends defeat a demon king in a great war but must now find a new way of life. Time passes differently for elves, and as her companions slowly pass away, the elf witnesses their deaths. Before his death, a companion leaves a young human apprentice in her care. Together, they embark on a journey to revisit the places the heroes of the past had been to and confront the elf's regrets of missed opportunities to form deeper bonds with her now-deceased comrades.

Blue Exorcist (2011) follows the story of Rin Okumura, a young exorcist who discovers that he is the son of Satan. He enrolls in the True Cross Academy to learn how to control his powers and fight against the demons. Along the way, he forms bonds with other exorcists and faces numerous challenges and epic battles as he tries to protect the world from demonic threats.

The Misfit of Demon King Academy follows Anos Voldigoad, a reincarnated demon king who enrolls in Demon King Academy to reclaim his throne. Despite being looked down upon as a misfit and encountering various challenges, Anos uses his magical powers and intelligence to prove his worth and uncover the mysteries surrounding his reincarnation.

Sleepy Princess in the Demon Castle follows the story of a princess who has been kidnapped by a demon king and trapped in his castle. Determined to find a way to sleep comfortably, she embarks on various comedic adventures, using her creative and DIY skills to make her surroundings more bearable.

Demon King Daimao follows Akuto Sai as he enters the Constant Academy for Magick Arts and aims to become a high priest. However, his life takes an unexpected turn when the school's aptitude test identifies him as the future Demon King. With this revelation, Akuto must navigate through various challenges, including dealing with a harem of beautiful girls, magical battles, and political conspiracies.

When a game developer gets transported into his own video game, he becomes the powerful demon lord and is challenged to conquer the virtual world to find a way back home.

The most powerful Demon Lord, Varvatos, is bored with life and decides to reincarnate as an average person. However, he is surprised to find that everyone in the modern world is weak, making him overpowered once again. Reborn as Ard, he attracts the attention of many women, the royal family, and even an ex-minion who wants to kill him. Despite the distractions, Ard remains focused on his ultimate goal.

Takuma Sakamoto is an antisocial gamer and shut-in who is transported to a fantasy world as his character, the demon lord Diablo. In this new world, he must navigate social interactions and powerful enemies, all while trying to figure out a way to return home.

In ancient China, a prince of the Xianle kingdom, Xie Lian, crosses paths with a fallen god, Hua Cheng. Together, they navigate the political intrigue of the heavenly realm and the mortal world, uncovering a deep conspiracy that threatens both realms. As they face challenges and form an unexpected bond, they must confront their pasts and fight against powerful forces to bring justice and protect their loved ones.

It's the year 952 on Cartland Calendar, Demon King Krotin and four demon lords lead the demon army to attack the Cartland Kingdom in the northern part of the central continent. When the war is at a stalemate, a brave man Jad Dove fights into the Demon Capital alone and finally defeats the four demon lords and kills Demon King Krotin. Jad thought this would be the end of the war between humans and demons, but troubles keep coming one after another, and he also discovers the secrets of the Cartland Kingdom.

After being killed in a classroom accident, a high school student finds herself reincarnated as a spider in a fantasy world filled with dangerous creatures and demons. She must adapt to her new life and use her newfound abilities to survive in this unfamiliar and risky environment.

In a faraway world in a dating game, a villainess, Irene Loren D'Autriche, discovers her doomed fate and role. She realizes her previous life as a dating game fan and becomes determined to prevent her tragic future. To change her destiny, Irene resolves to conquer the game's final boss, Claude Jeanne Elmeier, the Demon King and half-brother of Prince Cedric Jeanne Elmeier, by making him fall in love with her instead. Can Irene succeed in changing her fate, or will she be bound to the ill-fated ending that awaits her?

In the story, a gigantic hole suddenly opened up in the world one day, and demons appeared. The king thinks that this portends the return of the demon king Rukimedesu, who was sealed away by the hero Kureashion a millenium ago. The king decreed that the descendants of the hero must take on the threat, and 75 people showed up. Hero No. 45 (Aruba) and a sadistic palace warrior (Ross) team up, and their adventure begins.

Awakening from magical stasis after a thousand years, the Dark Lord Leonis suddenly finds himself in the body of a ten-year-old boy! He quickly meets Riselia, a girl confronting the Voids, creatures that have nearly exterminated humanity. Determined to uncover the mysteries of this strange new era, Leonis enrolls in Excalibur Academy, a school that trains students to fight back against these enigmatic monsters. Could the Voids hold some connection to Leonis's past?

Ike is a powerful magician and the leader of the Immortal Brigade, part of the Seventh Corps of the Demon Lord’s Army. He single-handedly conquers fortresses and pushes back the armies of humanity. Neither Dairokuten, the Demon Lord, nor Ike’s loyal soldiers know his darkest secret—he is a human in hiding! But can he keep his secret safe and bring peaceful coexistence to demons and humans?

After defeating an invading demon army, a magic-wielding war hero returns to discover that he is feared by his own people. Retiring as a hero, he seeks new opportunities.%s Hero Leo Demonheart had once saved the world from a demon army's invasion. However, he was feared and ostracized by people afterwards for his deeds, and no one would hire him ever again. Feeling that his skills would be better appreciated elsewhere, he joins the demon lord's army that he once fought. Now in a new work environment, Leo strives to use his skills and revive the demon army which he had reduced to the brink of collapse.

After losing his job as a Dark Soldier of the Demon King's Army for his lack of magic ability, 30-ish-year-old Dariel has found himself in a village of humans to spend his early forced retirement. But this unemployed magic-less demon has found a new calling as an adventurer. His second life might just be not so bad after all, as long the villagers don't find out he's not human.

The Great Jahy, the Dark Realm's second-in-command, cuts a frightening figure, feared and revered by all. But when a run-in with a magical girl results in the destruction of the precious mana crystal, the Dark Realm falls, transporting the newly tiny and powerless Jahy to the human world! Unfortunately, plotting the revival of the Dark Realm from a cramped, crumbling one-room apartment is no easy feat when you have rent to pay and a job to keep!

Touka is just your average (slightly perverted) farmer in the village of Cheza. While he daydreams about being a hero and getting the girl, the real hero, Sion, is out battling demons that threaten to invade the world! But one day, Touka accidentally kills the hero…?! With the Legendary Hero dead, who's going to save the world now?! Touka quickly buries Sion's body to hide the evidence, but wakes up the next day to discover he is no longer in his own body…!!

Three months have passed since the Demon Lord was struck down, and the Demon Realm is holding a tournament to select his replacement. The leading contestant is Helck, a human hero who claims to hate his own kind. Some aren't happy with the idea of a human becoming the next Demon Lord—especially Vermilio the Red. She wants nothing more than to protect demonkind and prove Helck to be their enemy, even if she has to rig the competition to do it!