Hence, there is no choice but to describe the progress of the battle relying on hearsay, and based on war chronicles like the "Heike monogatari" (Tale of the Taira) or "Gempei monogatari" (Chronicle of the Rising and Falling fates of the Minamoto and Taira clans), despite the fact that such chronicles are plagued with credibility issues.
そのため信憑性には難があるものの『平家物語』『源平盛衰記』などの軍記物語を基に巷間で信じられている合戦の経過を述べることになる。