Nishiyama Onsen Keiunkan Nishiyama Onsen Keiunkan Nishiyama Onsen Keiunkan (西山温泉慶雲館) is a hot spring hotel in Hayakawa, Yamanashi Prefecture, Japan. Founded in 705 AD by Fujiwara Mahito, it is the oldest hotel and one of the oldest companies in operation. In 2011, the hotel was officially recognised by the Guinness World Records as the oldest hotel in the world. It has been continuously operated by 52 generations of the same family (including adopted heirs) for over 1,300 years. The Keiunkan lies at the foot of the Akaishi Mountains. Since its foundation the hotel has had all its hot water sourced directly from the
Onsen Musume best Onsen Musume idol group in Japan. As of September 2018, there are 110 Onsen Musume representing onsen in Taiwan and all 47 prefectures of Japan. A group made of 9 of the "weird students" at the Onsen Musume School. SPRiNGS's strongest rival. Other groups simply can't compare to their performances. Each member performs so well that they could easily become the centers of other groups. LUSH STAR is the rival group that SPRiNGS gets along best with. Members of both groups were friends long before Sunahiko's proclamation. Their specialty is making everyone watching their performance feel more energetic. SPRiNGS's