Marketed as the authentic diary of an 18-year-old female visitor to the United States named "Miss Morning Glory" (Asagao), it was in actuality the work of Yone Noguchi, who wrote it with the editorial assistance of Blanche Partington and Léonie Gilmour.

The book describes Morning Glory's preparations, activities and observations as she undertakes her transcontinental American journey with her uncle, a wealthy mining executive.

Morning Glory briefly takes over proprietorship of a cigar store on the edge of San Francisco Chinatown before moving to the rustic Oakland home of an eccentric local poet named Heine (a character based on Joaquin Miller[1]).

After some days there spent developing her literary skills and a romantic interest with local artist Oscar Ellis, and a brief excursion to Los Angeles, she departs with her uncle for Chicago and New York, continuing, along the way, her satirical observations on various aspects of American life and culture.

The novel closes with Morning Glory's declared intention to continue her investigations into American life by taking a job as a domestic servant, thus preparing the way for a sequel.