The purpose of this paper is to examine the difference in Kamakura Period at the age of the tone of the Chinese character sound. Surveyed to live until the year 1262 from 1173, the texts of Shinran(親鸞). Shinran(親鸞) in the texts to compare with adolescence and late age.
To compare the tone of the sound of Chinese characters adolescence and late age of Shinran(親鸞).
The survey, carried out and the materials were read the Chinese classics Ondoku(音読), and the Chinese classics was Kundoku(訓読).
Results of the investigation, Ondoku(音読)and Kundoku(訓読), there was no age difference.
This may be due to its uniform writing by Shinran(親鸞).
In the future, about someone other than Shinran(親鸞), we will need to investigate the same.