Although a few preceding war tales, such as "Shomon Ki (Tale of Masakado)," had already existed, it could be said to have made a contribution to the development of a new literary genre together with "Heike Monogatari."
『将門記』などの先行する軍記物語はいくばくか存在するものの、『平家物語』などとともに、あらたな文学のジャンル形成に寄与した作であるといえるだろう。