Around the seventeenth century, when the study of commentary became popular, "Oral Records of the Tosa Diary" was written by Yuzuru KISHIMOTO in the various shoron, becoming the first example.
元和(日本)・寛永のころになって註釈的研究が盛んになり、岸本由豆流が諸抄論においてあげた『土佐日記聞書』などは、その最初のものである。