Shoichi is a partner at Field-R Law Offices. He specialises in sports dispute resolution, including football, anti-doping and athlete human rights protection. Shoichi has extensive experience representing athletes before sports forums, including CAS. He is also an arbitrator at Arbitration Center of Daini Tokyo Bar Association, the Vice Chair of the Sports Arbitration and Mediation Committee at Japan Arbitrators Association and a board member of the Japan Sports Law Association.

Since 2020, Shoichi has been the executive director of Japan Safe Sport Project, advocating for abuse prevention and safeguarding mechanisms in Japan and he will be the Chief Safeguarding Officer for the 2026 Aichi-Nagoya Asian Games and Asian Para Games.

After earning his L.L.B.  and J.D. from the University of Tokyo, he completed his L.L.M. (adv.) in European and International Human Rights Law at Leiden University.