The Ryusei ("dragon spirit") is a Shinto ritual within the Muku Shrine Grand Autumn Festival and refers to traditional handmade bamboo rockets handed down through the generations. The name comes from the fact that the rockets are launched from a scaffold to resemble dragons rising up into the sky. Differing traditional techniques have spawned 28 different schools bringing unique touches to the various rockets, some 30 of which are launched on the day.