Shoyo made his disciple, Saseki HASEGAWA, write it as a draft on the theme of disturbance within the Toyotomi family immediately after Osaka Natsu no Jin (Summer Siege of Osaka).
始め大坂夏の陣直後の豊臣家の混乱をテーマとして弟子の長谷川沙石に原案を書かせた。