In "Soga Monogatari" (the tale of Soga), which was established during the Kamakura through Muromachi periods, Abihiko is described as Demon King Abi who was exiled from the ancestral Ezo (northerners).
鎌倉時代～室町時代成立の『曽我物語』に蝦夷の祖を流罪にされた鬼王安日とする伝承が記載されている。