The Mermaid Queen's Revenge - Episode 3

Serlanty, a mermaid princess, is shown wedding dresses by a man who claims to have loved her. During a tense family meal, her father pressures her to be grateful when a white-scaled mermaid, Windseal, serves her food. Serlanty finally confronts them, revealing that everyone knows Windseal's preferences, but no one remembers she is severely allergic to seaweed.