|Season||Prism Power Pretty Cure!|
|Occupation(s)||Student (Council President)|
|Pretty Cure Ego||Cure Bubble|
|Super Form(s)||Glimmering Bubble|
|Form Change(s)||Ocean Rebel|
Mizumi is the most popular student and is the Student Council President of Nijiirohoseki Middle School along with Mawari as the Vice President who is admiring her friends and students. She has a strong friendship with Yume. She is very smart and she is very strict. Her mother is a principal in the Middle School and she is very rich, which her family lives in big mansion.
Mizumi has curly, chest-length marine blue hair with white headband tied on her forehead.
Cure Bubble (キュアバブル Kyua Baburu?) is the pretty cure ego of Mizumi. She represents the blue Cure of water and holds the blue Sapphire.
Pretty Cure! Prism Power! is Mizumi's transformation phrase in Prism Power Pretty Cure!.