During the Edo period, Tokugawa Mitsuhiro of the Mito clan lived in seclusion in Nishiyama. He called himself Mr. Merry. He cared about the people and the country and devoted himself to compiling the "History of Japan". In his life, he got along with his retainers and people, showing kindness and wisdom, such as caring about farming and helping the poor. However, the feudal veteran Muntao Fujii colluded with Yanagisawa Yoshiho and had evil intentions, which brought many crises to Mitsuaki and Mito Domain. Incidents such as the disappearance of Ami and Yukino's mother and daughter were all caused by them. Guang Kui relied on his wisdom and decisiveness to resolve the crisis and punish the traitors with the help of everyone. The novel shows Guang Kui's great personality and also depicts the complex social and power struggles at that time.
