Princess Mermista is one of the main characters in the Netflix Original series She-Ra and the Princesses of Power. She is the Princess of Salineas with the ability to control water. Mermista is the "cool girl" and her attitude usually appears to be blunt and unimpressed. She does not mince words when she speaks, but Mermista does have a soft side even if it is hard for her to express her true feelings.
Currently, we know her father retired and because of that she now rules over Salineas, and her guard is also her butler. She has a complicated relationship with Sea Hawk.
Princess Mermista can control water and transform her legs into a mermaid's fin. She can also breathe underwater.
- She-Ra and the Princesses of Power