Davi is a lavender cat-like fairy who serves as the fairy partner to Cure Sword. She exhibits an independent and mature personality, often maintaining a wise and calm demeanor. While generally composed, she frequently worries about her partner, revealing a deep sense of care and responsibility.

She can transform into a human form, where she operates under the alias "DB" as Makoto's manager. In this form, she appears as an adult with short, deep blue hair and typically dresses in stylish black business attire with glasses. This adult form contrasts with the other mascots, who transform into children, emphasizing her greater age and experience.

Her role extends beyond that of a transformation device. She provides emotional support and guidance to her partner, demonstrating a strong understanding of Makoto's unspoken feelings. She also acts in an older sister or maternal capacity towards the other fairies, Sharuru, Raquel, and Lance, and was the one who taught them how to transform into humans.

In the movie "Doki Doki! Pretty Cure: Mana Kekkon!!? Mirai ni Tsunagu Kibō no Dress," Davi assists the team by helping to convince her partner not to run away from the difficult reality surrounding the Trump Kingdom's situation.

Etymologically, her name is derived from David, a biblical figure corresponding to the King of Spades in traditional Paris court card naming. Her human alias, "D.B.," is formed from the consonants of her name.