In the Great Lunarium Kingdom, Princess Lunatemis is subjected to a humiliating punishment by her servant, Katsuma, after failing a mission. Utilizing a mysterious power called "Emblem Steal," Katsuma forces the Princess and another woman, Kaguya, into sexual submission, declaring his intent to seize the throne and bring the arrogant aristocracy under his absolute control.
Katsuma uses a drugged meal to capture Selena, subjecting her to humiliating punishments in a public park to break her will. After stealing her executive emblem and forcing her into servitude as his personal guard dog, he tasks her with uncovering Oboro's weaknesses. Bound by his power and a growing addiction, Selena and Oboro both succumb to Katsuma's dominance, abandoning their pride to serve as his playthings.