According to the oral tradition, Taira-no-Iemori left the capital for Kyushu accompanied by nineteen followers including Fujiwara-no-Hisamichi, and started to live at the foot of Mt.Kurokami through the arrangement of Lord Watanabe of Hirado. However, knowing that it was not the place for his permanent residence, Iemori decided to move to Uku after consulting with Lord Watanabe. The inlet where they anchored in at that time is still called Funakakushi(the boat hiding place). Thereafter, they ruled Uku and the whole Goto area as the founder of Goto domain.