Onjiki Shrine is the Setsumatsusha of the outer shrine, and the deity of the festival is Mito Gotojin.It is said that the origin of the founding was to award the achievements of the old man who dedicated water to Yamatohime-no-Mikoto, and the water from the well called "Tatsunoi" in the region dedicated to Yamatohime-no-Mikoto. It is said to be water.On the first day of the dragon, there is an event where local residents distribute the water drawn from the dragon well to worshipers.It is said that you can escape from fires and water accidents by sprinkling the water around the house and providing the remaining water to the kitchen.