A second-year student at L’École des Cinq Lumières Institute, Nozomi appears to be a typical shōjo heroine, and does not know what to do with her life. Her father works as an author of children’s stories and her mother runs a beauty shop. She has a habit of saying “It’s decided! (決定!, Ket-tei!)” when she decides on something not exactly with everyone’s permission. Formed a crush on Coco (in his human form) at first sight, and her feelings grow as the series progresses. This also has started a love triangle between her and Milk for Coco, because both have feelings for him. In Pretty Cure 5 Go! Go! movie, Nozomi kisses Coco in human form. Though her teammates are vastly different from her, Nozomi learns how to become their friend, and their leader. Cure Dream wears pink, and her costume has a design resembling that of Cure Rouge. For catching Pinkies, Coco gets a bell from her Pinky Catch. Her given name is pronounced, though not written, the same way as the Japanese word for hope, nozomi, and part of her surname (yume) means ‘dream’ in Japanese. According to the release date of the second movie, Nozomi’s birthday is November 8th.
She introduces herself as “Great Power of Hope, Cure Dream!” (大いなる希望の力、キュア·ドリーム!, Ōi naru kibō no chikara, Kyua Dorīmu!)
In the first movie, her counterpart is Dark Dream, who is voiced by Chinami Nishimura. In the second movie, she gets a power-up: Shining Dream.