In "Syren," Marinette's classmate Kim is being crushed on hard by his swim mate Ondine. Because of Kim's feelings for Chloe, Ondine becomes upset and gets akumatized into Syren. Now she's going to put Paris underwater so she can get her prince! Ladybug and Cat Noir struggle with the underwater environment, but the answer may lie with Master Fu! SPOTS ON, CLAWS OUT
