The Soga gradually retreated westward and by July 3 the demoralized Soga troops had finally concentrated in the area between Mount Shigi and Mount Ikoma. Legend has it that at this point Prince Shotoku of the Soga cut down a sacred nuride tree, fashioned it into an image of the Four Heavenly Kings of Buddhism, and placed it on his forehead. Shotoku and Soga no Umako then both openly vowed to build a temple to the Four Heavenly Kings should they be victorious in the battle, which reenergized their men prior to the final confrontation. In this final battle the turning point came when a Soga archer, named by the Nihon Shoki as one Tomi no Obito Ichii, fired the arrow which killed Mononobe clan leader Mononobe no Moriya, after which his forces were quickly routed.