This trend is not any more obvious than in the Taihei-ki (Japanese historical epic written in the late 14th century); although under the influence of Buddhism, it attributes the turmoil of the Northern and Southern Dynasties period to Onryo, which it believes, has the power to overturn society.
それをもっとも端的に示すのが『太平記』であって、仏教的な影響を受けつつも、南北朝の動乱を怨霊の仕業とする立場を見せ、社会を変動させる原動力であるとみなしている。