Nan-Taiheiki is a book which was completed by Sadayo IMAGAWA (after becoming a priest, known as Ryoshun IMAGAWA) in 1402. It mainly deals with the histories of the Imagawa and Ashikaga clans, and was written to his descendants. The title of this book seems to have been named by posterity and not to have had a name when it was completed. The first half of this book criticizes that "Taiheiki" (The Record of the Great Peace) thought little of the Imagawa family, from which the title of the book came. The latter half is about the incidents which Sadayo actually experienced from the late Northern and Southern Dynasties (Japan) to the early Muromachi period.
The contents are as follows.
The reasons why this book was written.
About the history of the Ashikaga clan
About the history of the Imagawa clan
About the hisotry of Imagawa no sho and its contribution
About the births of Takauji ASHIKAGA and Tadayoshi ASHIKAGA brothers
About Takauji ASHIKAGA'S proceeding to the capital and Norifusa UESUGI
About the process of completing Taiheiki and its errors
About the relegation to Kyushu
About raising an army at Shinomura-Hachimangu Shrine
About the sword of Pachi pachi o
About Tadayoshi's doubt on the pure warrior's heart
About the energetic activity of the Imagawa family in the Nakasendai War
About the energetic activity of Norikuni IMAGAWA in the battle against Akiie KITABATAKE
About the origin of the Imagawa family's banner, 'Red Bird'
Grief for the Imagawa estate and fief
About Kiyouji HOSOKAWA (loyalty of Norikuni IMAGAWA)
About Kiyouji HOSOKAWA (deliberation of Norikuni IMAGAWA)
Oei War and pent-up anger against Yoshimitsu ASHIKAGA (criticism of the Yoshimitsu's prayer without reflection)
Oei War and criticism on Yoshimitsu ASHIKAGA (criticism on Yoshimitsu, who did not examine loyalty and filial piety)
About Yoshihiro OUCHI priest
About giving one's name
About a shame
The original text
The whole text was collected in the 398th volume of Gunsho ruiju (Collection of historical documents compiled by Hokiichi HANAWA).