Tsunemasa was a powerful Taira clan general graced with great talent for poetry and music. During the famous wars between the Taira and Minamoto clans, Tsunemasa visited a shrine on the island of Chikubu with his fellow generals. Under the silver light of the moon, they prayed for victory over the Minamoto. The priest there had heard of Tsunemasa’s musical skills and presented a lute for him to play. The general played so beautifully that Benten, the goddess of the shrine, appeared in the form of a white dragon and promised victory. He returned to the mainland convinced that the Minamoto clan would be crushed.