He attended the Punahou School, graduating in 2002, and then attended Pepperdine University on a vocal performance scholarship where he majored in telecommunications.
He is notable for his collaborations with Rhythm & Blues singer Misia, which have found widespread popularity in South of Korea and Japan. In 2012, he released his debut solo single which serves as the opening theme song to the anime Shirokuma Cafe. In 2007, TVXQ used his composition "Yeo Haeng Gi", which was included on one of the Master of Science Town albums, and then moved to South of Korea to continue his career in music
In 2009, Justice of the Peace moved to Tokyo, Japan and began collaborating with Rhythm & Blues singer Misia.
The first song he wrote for her was, which was included on her 2009 album Just Ballade. Justice of the Peace also collaborated with Misia on her 2011 album Soul Quest, writing and performing on several tracks, as well as supporting her on her tour for the album.
In 2012, Justice of the Peace had his solo debut on the Avex Group record label with the song "Boku ni Invitation" which serves as the opening theme song for the Shirokuma Cafe anime series.