The battle between Rikuo and Tsuchi-Gumo reaches its climax. Meanwhile, Nurarihyon enters Nijo Castle to confront Hagoromo-Gitsune for the first time in 400 years.
As the battle in Kyoto intensifies, the Keikain onmyoji and the Nura clan yokai realize that only by working together can they become a match against the Kyoto yokai.
The Kyoto Yokai are moments away from fulfilling their long-standing wish with only one seal remaining to break. Meanwhile, Rikuo and his clan members on board the Treasure Ship are about to enter Kyoto.
Rikuo completes his training and returns to Ukiyoe Town with the Tono-Yokai. Seeing the progress his grandson has made, Nurarihyon allows Rikuo to go to Kyoto.
During the era when the Toyotomi clan ruled Japan, there lived a young woman known as Princess Yo, who could heal any wound or disease with her magical powers.
Ryuji Keikain uses his Shikigami “Gyogen” to attack Rikuo, who defends himself with his blade. Ryuji halts his attack when he recognizes the blade as “Nenekirimaru,” a Spirit Blade that can only cut down yokai.
Having lost his father at an early age, young Rikuo Nura aspires to become the Supreme Commander of yokai just like his grandfather and late father did.