Shakokumei was a naturalized citizen of Japan, originally from Song, who was active in Japan-Song trade. He lived near Kushida Jinja Shrine. He owned Oronoshima Island, and was sometimes referred to as a boatman. It is thought that he was a boatman and capitalist trader. He built Jotenji Temple in 1242, welcoming back Shoichi Kokushi (then known as Enji Benen) from Song to open the temple. A grave and memorial to Shakokumei is located just in front of a bridge over the Mikasa-gawa River, below the branch of a large Camphor.