In the winter kitchen, steam emerges from the hole of the sand pot cover. From a distance, the conical cover is like a volcano to be erupted. However, volcanoes bring disaster, casseroles bring delicious food. Inspired by the world cultural heritage and one of the most famous mountains in the world-Mount Fuji. This is an active volcano that has not erupted for more than 300 years but may erupt at any time (I hope it will not erupt so soon, after all, it has not been there yet).