This clan is descended from toraijin (people from overseas, especially from China and Korea, who settled in early Japan and introduced Continental culture to the Japanese) with two distinct lineages, one from Kudara (Baekje) and the other of Han race from China.
元は渡来人系の一族であるが、実際には百済系の一族と漢族系の一族の2系統が存在する。