A castle built in 1601 by Todo Takatora. In 1615, the castle ownership was taken over by the eldest son of Date Masamune, known as Hidemune, who carried out various reservations, to produce the castle that is seen today. At the time of being built, the northern side was said to be impenetrable due to facing the sea. The castle has an unusual pentagon shaped castle tower tiers. On the roof, there is a decorative tile which is said to have been included to wish for luck and longevity.