Conan, along with Heiji, Ran, and Kazuha travel the Isle of Mermaids looking for Saori Kadowaki, who had sent a letter to Heiji asking him to save her from being killed by a mermaid.
Genres: Animation , Comedy , Crime , Mystery
Keywords: adventure , age-change , anime , based-on-manga , cop , detective , dramatic , japan , japanese-high-school , mysterious , secret-identity , secret-organization , shounen , suspenseful , watch-series-online , watch-anime-series-online