Hoshino Resorts will be unveiling a brand new KAI property in the Hakone district on 27 July 2018 and this will become the 15th property under the greater brand umbrella. The KAI Sengokuhara will become the second KAI brand in Hakone (the current KAI Hakone is situated along the Sukumo River), and it will feature private hot spring baths in each of its 16 guest rooms.