In 1842, in the Umemoku Mansion within Hikone Castle, Naosuke Ii, despite the tumultuous times, was engrossed in the world of tea ceremony. His friend, the Kokugaku scholar Nagano Shuzen, introduced him to a captivating shamisen master named Murayama Taka. Naosuke became deeply infatuated with her, disregarding the jealousy of his consort Shizu and the warnings of his senior retainer, Gaiji. However, upon discovering Taka's relationship with Shuzen, Naosuke promptly ended his ties with her.

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