After graduating from Nippon Sport Science University, he had a brief field career from 1997 to 2000, being in North-Central American teams and living a certain period in Croatia.

After being translator for Ivica Osim and his son Amar Osim[1] during his spell as JEF United Chiba's coach until 2007, Mase became a coach at the club.

Form 2010, he became a coach at Fagiano Okayama (2010-2012) and Tokyo Verdy (2013).

[4] In July 2018, he signed with former club Blaublitz Akita and became a manager for the first time in 2 years.

This biographical article related to a Japanese association football forward, born in the 1970s is a stub.