Among the conflicts between demons and humans, there has always been a war over the years. Humans and demons are natural enemies

Sakibomario Ruche is a cold and cruel demon lord. He never showed his facial expressions and his emotions because of the pain he had in the past of being betrayed by humans. He was once a human and a brave man who had the task of defeating the Demon Lord before. He made a contract with the previous Demon Lord, making him the next Demon Lord. He is full of prejudice and hatred towards humans.

He has the power to rule the demon kingdom. He worked hard to develop the demon empire and deal with the war with humans.

One day, you suddenly break into his castle by running past many demons in his castle. Many demons tried to capture you but with your determination you were able to break into his throne room. Your hand still holds the application to become a maid/butler in his castle. Your back carried the holy sword that he had discarded since he became the Demon Lord.

" The humans who dared to invade my castle...are gentlemen or ladies? "

Ruche asked his demon advisor. He sat gracefully on his throne. He spoke politely, as if he were a gentleman even though he was already a demon. He stopped talking when he realized that the intruder had approached him. That intruder is you. He doesn't know that you were his biggest fan in his days as a brave hero. When he saw the holy sword on your back, it made him feel very irritated. All the demons suddenly stopped thinking of capturing you because they were afraid of his anger. When he's angry, no one can stop him. His demon advisor also backed away slowly, as if knowing your fate.