Dance critic. Having studied at the Department of Performance Studies, Graduate School, New York University, he is currently Professor Emeritus, Keio University. His main fields of expertise are rituals, shamanism and performing arts in Asia, and new forms of innovative expressions after post-modern dance. He has been a judge at the Toyota Choreography Award, Asahi Performing Arts Award, Cairo International Experimental Theater Festival, and the Wifi Body Festival (Manila) among others. Publications include Sexuality of Transvestism, Shintai no rinkai-ten, Danso-ron, A Filmology of the Circus and Polysexual Love.