Nichiyobi Kaki

 is one of the protagonists in Pika☆Pika! Etoile♥Love Pretty Cure!. Kaki is a cool tomboyish girl who is energetic. She loves to play in any kind of sports. She was a member of the Soccer Team. She was terrible at studies as possible. Kaki is hyper and definitely carefree to others, and loves eating pizza, burger and pasta. She loves to take care animals and plants and helps other people who are weak. Kaki was likes jokes, and she has a strong partnership with her team mates and she can be active.

Her pretty Cure ego is Cure Volcano, represents Fire Topaz.

Cure Volcano
Kyua Borukēnō (キュアボルケーノー) is the pretty Cure form of Kaki. She represents the Fire Topaz.

Transformation
Pretty Cure! Magical Stage! Start! is Kaki's transformation phrase in ''Pika☆Pika! Etoile♥Love Pretty Cure!''.