Heading for their new domain administrative headquarters in Tanabu, the Tonami Clan of Aizu boarded an American steam ship, the Yancy, chartered by the new government from Niigata Port. By taking the Japan sea route, 1800 people, including members of the clan and their families, landed on Ohiraura (now Ominato-shinmachi) on 10 June 1870.
 
A monument erected in 1990, in order to pass down the story of the clan to future generations, is made of the same stone used for the walls of Tsuruga Castle in Aizu. The monument is set facing the direction of Aizu-wakamatsu City of Fukushima. 
 
The inscription of the monument was written by Morisada Matsudaira, the 13th generation head of the Aizu Matsudaira Family. MAP
 

It is made of Japanese cypress and uses the joined block construction technique. It is painted with lacquer and covered with beaten gold.

The statue was received from Shojoke-in Temple of Kyoto and the sculptor Soto Genshin of Eshin-in Temple is famous for compiling the Ojo-yoshu, a book on the Tendai sect of Buddhism during the Fujiwara period.