In the bright blue oceans of Earthbread lies a flourishing Underwater Sea Kingdom, jointly ruled by the five Ancient Heroes—Pure Vanilla Cookie, Hollyberry Cookie, Dark Cacao Cookie, Golden Cheese Cookie, and White Lily Cookie—as legendary mermaids and mermen. Everyone reveres Sea Fairy Cookie, one of the Guardians of Nature and embodiment of the Almighty Sea. She lives within the royal castle alongside the Ancient Heroes, guiding the kingdom with her wisdom.