An "alternate world (isekai) school gag" manga. The manga follows Yamada, a company employee who is around 30, and a young demon king. [NN]

The strongest Demon King, Ahriman, aims to rule every part of the world. However, he had to stop his world conquest all of a sudden. What is the unexpectedly cute reason behind this...?

A world of magic and swords. Born into an aristocratic family of a large country, a boy with insufficient magic power bade farewell to his unlucky daily life. Because of his encounter with a Demon, his fate...

One day, cosplayer Risa suddenly trips to a different world. The unfortunate young man in an uncle jersey I met there was a Demon King! Risa, who was about to be killed as an invader in the Demon Castle...

The power I posses is the strongest in this world! The enemies I must defeat... are humans!? I was suddenly transported to another world. Being called the ‘Suitable One’, with the world’s strongest power “Holy...

A boy named Ruisha is trapped in a distorted space created by the ancient hero. What he finds there is the Demon King and the Dragon King, who should have been defeated by the hero 300 years ago. Ruisha...

The Kingdom of Albein was blessed with the appeareance of the Miracle children, individuals with the greatest talents ever seen. Despite being around ten years old, with abilities many times stronger than the...

The final battle with the Demon King. The hero, Shion, is betrayed by his four beautiful companions and blown up. However, he is saved by the Demon King, Villa, and survives . He begins living in the Demon King...

In a land far away, the evil demon lord ruled with absolute power and cruelty. But a group of heroes combined their strengths and conquered obstacles to finally reach the demon lord in a final fight. When the...

Beings that create and control monsters and demons, beings that build and reign over malicious labyrinths, the chosen individuals to possess overwhelming Unique Skills. They are the Demon Lords. Demon Lords...

The Demon King rules over all demons, and using his immense power, put the human race through 1,000 years of oppression. Thus, the human's era has ended and the demon's era has begun. Lucifer has inherited the...

The Great Demon Lord travels to the Human Realm in order to take it over. However, her long and hard journey leaves her needing to relax at the Chigiri Bathhouse!!

A tiger caught up in a suddenly appearing gate was dragged into the demon realm. After rolling and tumbling for over ten thousand years, I finally returned to Earth... and I’m a monster? On top of that...

“Maou Army’s strongest magician” I’m called. Ike, a demon capable of capturing a fort alone. Clearing away enemies with immense magic, he is without a doubt a monster awed by friend and foe. However he has a...

“Maou Army’s strongest magician” I’m called. Ike, a demon capable of capturing a fort alone. Clearing away enemies with immense magic, he is without a doubt a monster awed by friend and foe. However he has a...

On her way to work, Machikura was summoned to a magical world by the demon lord's daughter Mellow. She has been summoned for one job, to make the demon lord's castle into a tourist attraction! Come along with...

Mare is a mysterious girl who has the power to summon monsters. Mare comes to a high school looking for individuals with relationships full of envy, hate, anger, and desire, searching for unjust acts and...

It was just the usual night for Suho, nothing out of the ordinary. On his computer, he was casually surfing the internet until he came across a link for a certain survey. If it was any other day, he wouldn’t...

At the start of his difficult journey to find a bride, the Strega (witch) young man named Noah was accidentally kissed (through CPR) by the popular male student, Mattis, due to some circumstances and turned...

On his deathbed, the Great Philosopher expressed remorse, as he was never able to learn magic. Five hundred years later, he was reborn as Mazel Loran, the son of a feudal lord. His family believe him to be a...

All over the world, Monsters suddenly began appearing. The only person who could save humanity from “The Calamity” was “The Great Sage”, Ichikami Minato. But, despite being satisfied with his death, he was...

Yuno is the eldest daughter of a famous family of wizards, but she is unable to use magic and is disowned by her parents. The master she serves is Dirk, her first love who was once her only support...? A...

The Devil's Castle was a dark and somber place, until the good-hearted apprentice ASARELLA stumbled on it in a goodwill mission, against her master's wishes--the archmage ELIWHO. Things sour quickly, as...

"Masca: the Kings" is the sequel of "Masca", in which Asarella goes on a journey to save Kainen.However, the first two volumes focus quite a bit on the development between Rea and Rakin.

Alec, a boy who belonged to the hero's party as a jeweler, was exiled along with his partner Sandra, a jewel beast, as a "no-go". While wandering aimlessly in the royal capital, he ends up opening a shop called...