Since the launch of Black Pearl Cookie in Cookie Run: Kingdom, it has also been linked to Black Peark Cookie, perhaps due to the fact that Sea Fairy Cookie and Black Pearl Cookie are in opposition to each other. Black Pearl Cookie is a corrupt mermaid, and Sea Fairy Cookie is the sea itself and the incarnation of the sea, so usually Sea Fairy Cookie is described as superior to Black Pearl Cookie, perhaps because Black Pearl Cookie can only exert influence within the Black Pearl Islands but Sea Fairy Cookie can be in charge of the entire sea. It comes out as a basic look when described as an aversion relationship with Black Pearl Cookie, and as a skin that is the owner of the endless deep sea when described as the same side.