After dropping out of Waseda University, established Bug Corporation, a music office. Worked as an artist management company representative and music producer.From 2010 started activities as an entertech evangelist, including writing, seminars, and advising. Co-founder of SXSW Japan Factory, contributing to global collaboration in the field of enter-tech.Board of directors of the Japan Federation of Music Producers Associations (2005-2013) and member of the editorial board of the Digital Contents White Paper (edited by the Ministry of Economy, Trade and Industry) (2011-2020).Hosts Yamaguchi Seminar, nurturing the next generation of music composers. Also into education as Specially Appointed Professor of the Music Business Department of Osaka College of Music and Visiting Professor of iU.Founded StudioENTRE, a start-up studio with the aim of creating new businesses in the field of enter-tech.