Shachihoko is a mythical creature from Japanese folklore, often depicted as a fish with the head of a tiger. Traditionally, it is believed to have the ability to control water and protect buildings from fire. Shachihoko are commonly found on the rooftops of castles and temples, serving as guardians against disasters. These creatures are usually crafted from materials like wood or metal and are intricately designed. The most famous examples can be seen on the roofs of Nagoya Castle and Osaka Castle. Shachihoko symbolize strength and protection, making them significant in Japanese culture.