Black beauty sisters are antagonists. Sheshe is voiced by Laura Post and Mimi is voiced by Trina Nishimura.
characteristics: Sheshe- tall, slender, curvy, ginger hair, blue eyes, beautiful, evil, dishonest, perverted, sadistic, manipulative, arrogant, cocky, power-hungry; Mimi- slender, curvy, blue hair, red eyes, beautiful, evil, dishonest, manipulative, perverted, cocky, arrogant, power-hungry
real age: 14 real years
species: water demons
comes from: the Mermaid melody pichi pichi pitch franchise
subrace: negative characters
animated ages: Sheshe- 17 toon years; Mimi-15 toon years
catchphrase: "It's show time!"
- They are capable of producing melodies, that can cause pain to positive characters, similarly to Mermaid melody.
- Sheshe's original actress is Miki Tsuchiya.
- Mimi's original actress is Noriko Shitaya.
- Most of their roles are minor, but they appear as the main antagonists in the episode Toon patrol: Weasels in suits. In the same episode it was revealed that their songs do not have an effect on other antagonists.