UCHIWA Japanese Fan - UmibozuSea monster. At night, it emerges from the turbulent sea with its pitch black body, sinking ships and dragging people into the ocean. Depending on the region, it is said to appear at the end of the month, during the Bon festival, or on New Year's Eve. It was believed that to prepare for any eventuality, it was good to burn tobacco smoke, which sea monks dislike. This uchiwa fan is crafted using the 'Sashie' technique, where the handle is inserted into