However, because of the untimely sudden death of Yoshimune and the lack of the bakufu (Japanese feudal government headed by a shogun) Tenmongata's influence on the politicians inside the government, Yasukuni TSUCHIMIKADO, Onmyo no kami in Imperial Court (Onmyoryo or bureau of Divination) (see the Tsuchimikado family of the Abe clan (from the Muromachi period to the Meiji period)) took initiative in reforming a new calendar.
しかし、吉宗の急死と幕府の天文方に政治力がなかったため、朝廷の陰陽頭・土御門泰邦（阿倍氏土御門家（室町～明治時代）参照）に主導権を奪われてしまった。