Muto shin who revisited his younger brother, Shorai, put a ring of Chigaya (Japanese blood grass) as a mark on Somin's daughter who became the wife of his younger brother, Shorai, and destroyed Shorai's family members except for her.
後に再訪した武塔神は、弟将来の妻となっていた蘇民の娘には茅の輪を付けさせ、それを目印として娘を除く弟将来の一族を滅ぼした。