The Andō were possibly descendants of the indigenous Emishi people who populated the Tōhoku region prior to the arrival of the Yamato Japanese in the late Nara period.

However, in the 15th century, the Andō came under attack by the Nanbu clan based at Sannohe Castle and was forced to retreat from Tosaminoto Port to Hokkaido.

Wakimoto Castle is located on a flat-topped hill with a height of 100 meters at the base of Oga Peninsula near the edge of the Akita Plain and near the mouth of Lake Hachirogata (which has now disappeared due to land reclamation).

At the peak of the hill there is a group of square-shaped enclosures which contained the residence, surrounded by kuruwa terraces, which might be a remnant of the original castle.

[2][3] Andō Chikasue pledged fealty to Oda Nobunaga and to Toyotomi Hideyoshi and was confirmed in his holdings which extended over two-thirds of Dewa Province.

After many vicissitudes, the Akita clan continued to the end of the Tokugawa shogunate as daimyō of Miharu Domain in what is now Fukushima Prefecture.