Etymology and distribution of 二日一.

Futsukaichi 【二日一】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Tottori-ken Yonago-shi , Toyama-ken Takaoka-shi .

① Tottori-Ken Yonago-Shi in the 用土 there last name. Tottori-ken Yonago-shi Distributed in Kawaoka. 用土 Youdo reference.

② Toyama-ken Takaoka-shi Meiji New surname by monk of Saiko-ji of Shogojin in Aso Valley. In the same temple tells that the descendant of Mr. Fujiwara was called in the late Heian period. There is a word of adoption. 藤原 Fujiwara reference.