Piyoko is a young girl who works for Deji Devil. Apparently, she is the leader of the Black Gema Gema Gang, despite being only six years old. She addresses Deji Devil as "Deji Devil-sama" ("Lord Deji Devil"; in the dub, she refers to him as "Boss"), but according to her character profile, she has little actual respect for him. Dejiko and company do not treat her or Deji Devil as a threat, going so far as to refer to Piyoko as "Piyoko-chan" as if they were close friends. Piyoko ends her sentences with "-pyo".