The line has five main characters: Willa, Kendall, Ashlyn, Emerson, and Camille. They are all characterized as young girls of about early elementary age (5-7) who meet together in a backyard garden (supervised by Aunt Miranda, who is Willa's aunt) to play with each other. While they each have unique personalities and interests, they play together freely and enjoy each other's company; the line characterizes them as all wanting the same overall goal of being a good friend and taking a step in each other's "wellies" to understand each other.