Etymology and distribution of 向繩.

Saginawa 【向繩】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Kyouto-fu . Korean type . Terrain . "River" is added to Zhu. There is a record of naturalization on Hyougo-ken Kawanishi-shi on February 13, 1979. There is also "Akai". The real name is Zhu. 朱 Shu reference. 赤井 Akai reference.