The Memorial Kaikan (is a room which exhibits many of Sosai Oyama's personal belongings, like his Doji, books, pictures,..., and also you can watch many of the Kyokushin videos available today) is run by Sosai Oyama's daughter Mrs. Kuristina Oyama and his husband Mr. Yoshikazu Susuki. Also, Mr. Yoshikazu Susuki, is in charge of the Kyokushin classes in Honbu.
Thank you to this wonderful idea of keeping the Honbu open to anyone and any group or Kyokushin faction, many people will have the opportunity to visit the building which contain to much history about our style and, also people will have the change to practice if they wish in the same dojo where thousand of greatest Kyokushin practitioner were teach by Sosai Oyama himself. It is the only Kyokushin Honbu that I know were everyone is welcome to visit or train.