According to "Nihon Shoki," he is said to have devised the system of offering "haniwa" (hollow clay figurines) instead of subordinates' killing themselves on the death of their Empress, and have been awarded a title of Haji-no-omi (which is known to be a legend from an archaeological point of view; see the section on Haniwa for more details).
『日本書紀』によると、皇后の葬儀の時、殉死にかえて埴輪の制を案出し、土師臣（はじのおみ）のカバネを与えられたとされる（考古学的な知見からこれは伝説であることがわかっている。詳しくは埴輪の項目を参照）。