Later, it was modified and organized by a blind musician, Nyoichi, and his apprentice, Kengyo AKASHI (an another name of Kakuichi AKASHI) (1299 - 1371), in the period of the Northern and Southern Courts (Japan) and they established the Ichikata-ryu.
のち、南北朝時代(日本)の盲人音楽家如一とその弟子明石検校明石覚一（1299年-1371年）が改変、整理し、一方（いちかた）流を創始した。