When the Kenmu Restoration started, Kanemitsu concurrently served as Shugo (Military Governor) and kokushi (provincial governors) of Wakasa Province, and Zusho no kami (Director of the Bureau of Drawings and Books), Tosa no kami (Governor of Tosa Province), and Okura no shofu (Junior Assistant Minister of the Ministry of the Treasury) as additional posts.
建武の新政が始まると、若狭守護と国司を兼任し、更に図書頭兼土佐守、大蔵少輔に任ぜられる。