Her theme color is purple, just like Michiko Saaya. She has long curly hair that resembles a ponytail, with her purple ribbon on her head. She has purple eyes as well. She wears a long purple sweater, with her purple pants, and white sneakers.
Eriko is a caring, cooperative, and smart ojamajo. She loves taking care of Rinko a lot, because she is the most liked ojamajo that she chooses for.
- Eriko is the purple ojamajo who is the mother of Rinko.
- She is a caring ojamajo who took care of baby ojamajos, and either her daughter, Rinko as well.