A brief history of classic Yes. Drummer Tatsuya Yoshida organized the zeuhl bands Ruins and Koenjihyakkei and has probably worked with every prog rock musician of note in Japan. Guitarist Kido Natsuki has been part of Bondage Fruit (a very interesting instrumental band, despite the questionable name) and Umezu Kazutoki Kiki Band. I don’t know anything about Nasuno Mitsuru; he might be worth investigating.