Etymology and distribution of 空尾.

Sorao 【空尾】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Chiba-ken Ichihara-shi . Ibaraki-ken Mito-shi A place near Shiozaki Town (formerly known as Tsunesuke) is a place name with a notation of "twister" in the age of warring States. There is a place name including "Always". In the Heian era warlords with Chiba-ken as the base, there was a name of Normal Tsumari. 平 Taira reference.

※ Goguryeo system . There was a case in 836 (Yoshika 3 years) who gave the name of Nenzo inn. Location unknown.