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Shinjuku, a cyberpunk metropolis adorned with neon lights, towering skyscrapers, and advanced technology, is a massive city-state. After five centuries, the legendary Demon Lord Veltol returns in the year 2099 of the Fused Era. However, the city has undergone significant changes since his first conquest. The fusion of magic and engineering has facilitated unprecedented progress, and civilization has emerged to dazzling heights. Although Veltol may have been reduced to a mere historical reference, do not be deceived - he is determined to establish his reign over this new world.
A girl who calls herself the Demon Lord falls upon the main character, an elementary school teacher living in the countryside, and they decide to get married?!
Lavinia was framed by her beloved father and labeled a villainous young lady. To raise funds for her revenge, she chose Hotel Alheim, a converted Demon King's castle. She tried to seduce the handsome young general manager, Ruudbert, a descendant of the Demon King, and seize management rights, but her attempt failed quickly. However, Lavinia, who aims to rise to power, uses her "knowledge of evil" to solve the problems of guests one after another. A tale of ambition and humanity unfolds at the Demon King's hotel! (Source: Kadokawa, translated)
In a world where the war between humans and demons (magical beings) never seems to end, one day, the Demon King Gil arrives at Hazelbart Kingdom, the strongest of all human kingdoms. Gil presents a shocking proposal — a truce and peace treaty between the world of humans and the world of demons, on the condition that both sides respect each other’s territories and never cross the border. Seeing this agreement as a chance to elevate her own son’s status, the kingdom’s second queen secretly hatches a devious scheme. As a result of her plot, Princess Estelle is chosen as the sacrifice — forced to marry the Demon King as a condition to seal the peace treaty… Suddenly, Estelle finds herself the bride of the Demon King — a man completely foreign to her world, with a cold expression and mysterious intentions.
The story of the demon king and her loyal subordinate Aslia is recounted in a concise narrative.
Zagan is feared as an evil mage, he is awkward and has a sharp tongue, and once again had to put down thieves that encroached on his territory when he was researching that morning. In a dark auction, he finds a white slave elf, Nephie, who holds a peerless beauty. Falling in love with her at first sight, he uses his fortune to buy her, but as poor as he is socially, he doesn’t understand how to connect with her. Thus, the clumsy cohabitation of the mage that can’t convey his love, and the slave that pines for her master but doesn’t understand how to bring it up, begins.
Zagan is feared as an evil mage, he is awkward and has a sharp tongue, and once again had to put down thieves that encroached on his territory when he was researching that morning. In a dark auction, he finds a white slave elf, Nephie, who holds a peerless beauty. Falling in love with her at first sight, he uses his fortune to buy her, but as poor as he is socially, he doesn’t understand how to connect with her. Thus, the clumsy cohabitation of the mage that can’t convey his love, and the slave that pines for her master but doesn’t understand how to bring it up, begins.
Flay has been fired from the academy after being set up by his colleague. He receives a job offer from a mysterious maid. The job offer is to be a tutor to the five daughters of the Demon King! At first, they didn’t trust him to be taught by a human, but as he demonstrates his abilities, he begins to gain the trust of the Demon King’s daughters. Frey’s new life as an educator under one roof with five cute girls who are different in personality, but problematic girls begins!
Flay has been fired from the academy after being set up by his colleague. He receives a job offer from a mysterious maid. The job offer is to be a tutor to the five daughters of the Demon King! At first, they didn’t trust him to be taught by a human, but as he demonstrates his abilities, he begins to gain the trust of the Demon King’s daughters. Frey’s new life as an educator under one roof with five cute girls who are different in personality, but problematic girls begins!
Flay Garnet has been fired from the academy after being set up by his colleague. He receives a job offer from a mysterious maid. The job offer is to be a tutor to the five daughters of the Demon King! At first, they didn’t trust him to be taught by a human, but as he demonstrates his abilities, he begins to gain the trust of the Demon King\'s daughters.
From now on, you will become the butler of the Demon King’s Castle and live for me! Lute, a young boy who was summoned to another world, but was abandoned due to his incompetence. The one who took his hand was the Demon King’s only daughter, Lurunoa. That encounter turns everything upside down. Three demon princesses with great hidden powers and secrets. When the mysteries of the continent are revealed, the boy becomes the world’s trump card!!
The war between demons and humans ended thanks to the love of the Demon King and the Princess, and peace was brought to the world. Hoping for coexistence between demons and humans, the two set out on a journey to find places where demons could live. And now 60 years have passed since the Demon King and Princess began living together… On her deathbed, the Princess tells the Demon King, “It was a mistake to let demons out into the world.”. Having lost his beloved wife, the Demon King sets out on a journey. He must face the errors he made, and this time, he must create a world where demons and humans can live together…
