The Kaifūsō (懐風藻, Florilegium of Cherished Airs) is the earliest extant anthology of literary Sinitic poetry (kanshi) written by Japanese poets.
Most of the poets are imperial family members, court officials and monks, such as Prince Ōtsu.
Eighteen of the Kaifūsō poets, including Prince Ōtsu, also have poems selected in a later anthology of Japanese poetry, the Man'yōshū.
[1] At the time the Kaifūsō was written, Sinitic poetry had a higher place in the Japanese literary world than waka, and Chinese characters were used for official documents.
In the preface of the Kaifūsō, a distinction is made between the basic technology of writing and the embossed poetry and beautiful prose that arose through, and that completed the regulation and ritual of, the new code-based state.