The Naraejebun is a historical chronicle written, nominally, by the Prince of Lang, Niohuru-Nara Eidu, the younger brother of the seventeenth earth monarch Niohuru-Nara Arjin. It covers the history of the Nara clan, from the earliest times of myth and legend ca. 2100 BG, down to the great grandfather of the author, whose death in 801 BG concludes the work. It is based on the oral traditions of the Yonggan in the Nemuland, and of the Nara clan in particular, but also contains the results of extensive historical research in Yonggan and Common written sources. The Prince was assisted by a group of scholars, primarily Yonggan, some of whom traveled the Northern Earth Kingdom gathering material from storytellers and local records. Some ethnic Zhongzu scholars also participated, contributing to the literary and historical research, especially by searching the veritable records of previous dynasties for relevant material. However, they omitted anything which they thought might offend the Prince (a member of the Nara clan, who had only recently established a conquest dynasty in the Earth Kingdom), and so the Naraejebun paints an unrealistically positive picture of relations between the Central Earth Kingdom and the Yonggan.

The Naraejebun covers the descent of the Nara clan from the mythical culture-hero Barutu through his son, the Sun-Lord (i.e. Lord Nara). The establishment of the Nara clan's house of mantic shamanism, through Lord Nara's eldest daughter Nara Biyu, is also included. In all, the Naraejebun describes forty generations of the Nara clan, from Lord Nara to the undoubtedly-historical Nara Boosi, the first Yonggan Khan-of-Khans, inclusive.

In the parts of the chronicle more remote from reliable sources, its contents are likely legendary rather than historically accurate, but it exhibits a clear rationalizing impulse. This contrasts with the unashamedly mythological Barutugisun which preceded it as a great work of early Yonggan literature. That being said, it does bear the linguistic and stylistic influence of the Barutugisun, which was emerging as a national epic of the Yonggan.

The Naraejebun was written from the beginning in the Yonggan phonetic script. It was presented to the Renxian court in 730 BG and enjoyed the approbation of the seventeenth earth monarch, who ordered woodblocks cut. The work on this illustrated, bilingual edition was completed in 726, with the translation into Common being the work of the Shilin College of scholars in Ba Sing Se. The Renxian edition, as this version is called, differs slightly from the manuscript, by omitting material unflattering to the Earth Kingdom dynasties prior to the late Hao.

The Naraejebun, especially the Renxian edition, was undoubtedly intended to serve as unifying propaganda, glorifying the imperial clan to an audience of not only the other Yonggan clans and the literati of the Earth Kingdom, but to the members of the imperial clan itself. Nonetheless, it had real scholarship behind it, and where its historical content can be checked against other sources, it seems the authors were above outright falsehood, preferring rather to omit facts which did not support a positive view of the Nara ascendancy. That being said, part of its overarching narrative is to portray the gradual moral development of the clan to a position of just rulership, so it does not shy away from portraying some of the more remote historical figures as flawed.