The Demon Realm's Emperor and Empress Are Powerful Figures from the Divine Realm

They were bound by ten lifetimes of fate. In nine of them, he searched for her with his memories intact, and they fell in love. Every lifetime ended with him dying for her. When the final lifetime arrived, just as everything was about to come full circle, her memories suddenly awakened, and she chose to betray him.

Was it really betrayal, or was there something more behind it...?

The story takes place mainly in the Demon Realm. It begins with palace intrigue, but she has no interest in fighting over a tiny corner of the harem. The schemes eventually reach the imperial court, where she and the Demon Emperor love and hate each other in equal measure.

"So what if you're a man now? You still owe me, and you'll pay me back."

A strong heroine and a strong hero, locked in a love-hate relationship. This Demon Realm is modeled on the human world, with rulers and subjects, foreign nations, powerful generals skilled in magic, and ordinary demon folk who have no special abilities and little magical power. Some are even less capable in a fight than ordinary martial artists.