While this theory is not inconsistent with the record stating that Yuzuki no kimi was the grandchild of the fifth generation of the first Qin Emperor, nor with the belief that those who were associated with Qin (秦) began using the name "Hata" (秦)of their own accord on coming to Japan, there is little supporting evidence and further investigation is needed.
この説に基づくと弓月君が秦の(初代の)皇帝から五世の孫とする記述に反せず、「秦」つながりで渡来した人々が勝手に｢秦｣を名乗り始めたと考えてもさほど矛盾はないが、根拠は少なく今後検証の必要がある。