He focused on editing a manuscript book of the Five Mahayana Sutras (Hoke-kyo (the Saddharma Pundariks Sutra), Kegon-kyo (the Avatamska Sutra), Nehan-kyo, Daijik-kyo, Daibon hannya-kyo) and accordingly he sent copies of the five book to the Imperial Palace so that they would be kept in the palace temple, praying for people who had died in the war and with regret for what happened; however, the ex-emperor Goshirakawa, who held political power, refused this offer and said the book might have bad spirits, whereupon the palace, under his influence, sent the books back to Sutoku.
五部大乗経（法華経・華厳経・涅槃経・大集経・大品般若経）の写本作りに専念して、戦死者の供養と反省の証にと、完成した五つの写本を京の寺に収めてほしいと朝廷に差し出したところ、治天の君となっていた後白河天皇は「呪詛が込められているのではないか」と疑ってこれを拒否し、影響下にある朝廷は写本を送り返してきた。