Set in a dystopian future, Brave New World depicts a society where people are assigned to specific castes and live a life of hedonism and conformity. When two individuals embark on a forbidden love affair, they unravel the secrets of their controlled world, leading to a revolution and uprising against the established order. Through themes of bioengineering, mind control, and sexual liberation, the series explores the dangers of a utopian society.

Leonie Gilmour, an American woman, navigates the challenges of being a single mother and an artist in early 20th century Japan. She faces obstacles such as cultural clashes, language barriers, and the Russo-Japanese war. Despite these difficulties, Leonie perseveres and becomes successful in her career while also raising her biracial son.