Tropical-Rouge! Precure Season 1 Episode 37 Mermaid's Memories! Get Back Marine Ring! ( Air Date 2021-11-21 ) Genre Kids, Animation, Action & Adventure, Comedy, Sci-Fi & Fantasy, Family category. Overview "Manatsu and her friends head back to Grand Ocean to save the real Mermaid Queen. But then they discover a mysterious room filled with memories of mermaids who once interacted with humans. While there, Laura discovers a secret...".