One day,a big whale was stranded on this shore.
The border of the next village, Jusan-Hama Village, was not clear, the 2 villages did not know who could take the whale.
Each residents took the whale by force and a conflict between them happened.
At that night the strangest thing happened.
The cape in the village was divided and also the whale,too.
Each resident talked to each other that God mediated between them by dividing the cape.
From this time on, the divided rock was told to become the definitive border between the 2 villages.
Today it has become the border between Minamisanriku and Ishinomaki City.