Together with Raiko he studied Sanron, or Three Shastras (Treatises), under Chizo at Gango-ji Temple, looked around for shogyo (Buddhist sutras) and left numerous writings including "Hannya-shingyo Jutsugi" (literally, Interpretation Learning of Heart Sutra) and "Jomyogenron-ryakujutsu" (literally, A Brief Sketch of the Commentary on the Vimalakirti Nirdesa Sutra).
頼光とともに元興寺の智蔵に師事して三論を学び、聖教を周覧して「般若心経述義」「浄名玄論略述」など多くの書物を著した。