Yamigadani, also described as the Heart of Japan, is where Hayato Fūrinji and Isshinsai Ogata take their disciples to train. With Kenichi he learned one of Elder's Legendary 108 Techniques Seikūken. This place also can be used to help harness Sei or Dou flows or both to help activate Seidou Gōitsu which Ryūto Asamiya and Rimi Kokorone learned and as stated above can be used to access the Seikūken techniques.