Harumi asked the imperial court to use the Yamato Calendar but Yoshisada TANI (he was also known as Issai and Sansuke and was the son of Jichu TANI), a vassal of the Kyoto shoshidai (governor) Masamichi INABA,
春海は朝廷に大和暦の採用を求めたが、京都所司代稲葉正往家臣であった谷宜貞（一齋・三介とも。