Charles Rayburn is a scientist in a world ruled by a ruthless Matriarchy that suppresses men and magical progress alike. His obsession: engineering monster girls — hybrid women with animal traits — to serve as companions and allies. An accidental breakthrough sets off a chain of events that transforms Charles from eccentric lab hermit into reluctant revolutionary, as the Matriarchy mobilizes every resource to destroy him and his growing harem of fiercely loyal creations.

Charles is a classic eccentric genius narrator — boastful, single-minded, and utterly convinced of his own superiority, yet also genuinely protective of the women he creates and the men he liberates. His comic self-delusion is the series' running joke, but underneath the bluster is a tactically shrewd operator whose plans usually work precisely because everyone underestimates him.

Across ten books Charles's personal project evolves into a full-scale war of liberation, as his monster girl army storms duchy after duchy on the road to the Matriarchy's royal capital. The series blends comedic self-aggrandizement — Charles constantly narrates his own genius — with genuine military strategy, political maneuvering, and escalating action set pieces. Each book ends with the conflict expanded and Charles's power consolidated, culminating in a final showdown with Queen Calistia herself.