Crimson Coral Cookie is the committed and strict eldest sister of the Gem MermaidsWhite Pearl Cookie, Aquamarine Cookie, Cookie Gold Citrine Cookie, and Mystic Opal Cookie, residing in the undersea kingdom of Tearcrown. She was the kingdom's leader, commanding its many Legions and constantly protecting the kingdom's precious Sea Fairy Tear. Her individual power as a Gem Mermaid is controlling the sea's fauna.