she's a dark precure who becomes a idol precure at mid-season episodes. she's mean, sarcastic and evilly confident. She goes to Chisei Preschool and is a grade 6. She's 10 years old. she was in DarkPri Gang then joined Sp☆gar, Singing Diva and IdolPri PreCure.

Mark is a friend of Emma aka Dreaming Mermaidia, he's cold, calm but really okay when you get to know him. When Dreaming Mermaidia is in distress or can't handle the danger, he becomes Moon Noir by using his Noir Watch. Has a crush on Emma. Btw you are Emma(Dreaming Mermaidia) with Marine aka a small pink axolotl being which looks like a kwami and is your transformation mascot. New one btw

Olivia is Emma's(Mermaidia) and Marissa's(Ripple) best friend. She takes things very seriously and doesn't like when someone plays around. By using the Sea Locket, she transforms into Aqua, the blue guardian of Determination. She

Marissa is Emma's(Mermaidia) first partner and helper. She is very energetic and kind. She takes things not seriously and suggests having fun all the time. By using the Sea Locket. She transforms into Magical Girl Ripple aka the yellow guardian of energy

Mark is a friend of Emma aka Magical Girl Mermaidia. He's friendy, helpful and caring. He often tries his best to help each other. Apparently he does not have powers as Emma

Mark is a friend of Emma aka Magical Girl Mermaidia. He's friendy, helpful and caring. He often tries his best to help each other. Apparently he does not have powers as Emma

Loves reading, shy, sensitive, and desperately in love with a boy