It is believed that this law book was created as an example used for preparing Myobo kanmon (written reports to the Imperial Court by scholars of the law) and practical documents, as a part of the efforts to reinforce responses to lawsuits under the cloister government of the retired Emperor Gotoba.
後鳥羽上皇の院政において訴訟対応への強化が図られ、その一環として明法勘文や実務文書作成のための手本として作成されたと考えられている。