In exchange for the one eye, Mitsuyoshi barely managed to seize life. Mitsuyoshi hides in Yagyu Village in order to sharpen her broken sword and soul. At that time, an unexpected visitor arrives. The ripples of emotion between humans and insects eventually become a big swell, inviting Mitsuyoshi and her friends to the final battle!!

Volume 1
Chiyo Hijiri, the young prince of Etsuchi Castle and the next shogun, encounters a mysterious female swordsman, Mitsuyoshi, when he escapes from the castle for water training. While Mitsuyoshi is teaching her Shichiyo how to swim, she is caught in a fight by Mitsuyoshi's retainer Tactical Anki Hyouga. The opponent was Sanadamushi Yuuji, a youkai named Kakehijuuzo. Mushi Yuji is the youkai who set fire to Etsu Castle three years ago and took the lives of young young princes, and was the nemesis Mitsuyoshi had been searching for. With one eye open, Mitsuyoshi defeats the beast elephant with overwhelming force, and Shichiyo safely returns to Ezuchi Castle. . .

Volume 2
Shichiyo works hard to practice swordsmanship, but is confused by the feud between Yuijo and Munafuyu. In such a way, the dedication ceremony begins. Mitsugen, who was outside the castle with Leopard Fang, sensed the presence and stood up. In front of me was the insect ghost Rokusetsu Umino. In the castle, Chiyo's Butoh begins, but she is attacked by the Mushi Ghosts Mochizuki Suho, Miyoshi Jogo, and Miyoshi Sakata. Mitsuki gains the upper hand in the fight, but Umino escapes. Munefuyu is a shogun, and Yuijo crosses a blade with a rust block, and Munafuyu is forced to struggle even though he hits a blow. Ino provokes Munefuyu to open his eyes, but is restrained by Munenori who rushes to the rescue. The rust mass defeats the tactical dark demon and shows an overwhelming fighting performance, but retreats due to "time out". Shichiyo was kidnapped by Mochizuki. . .

Volume 3
Munafuyu goes out to investigate with Hyouga and Yuijo with Hayabusa, and confirms that a ninja attack called Kasumi, which Kirigakure unleashed, caused a friendly raid among allies. Shichiyo is toyed with by hearing that the purpose of the insect ghost is to establish a relationship with the shogun family, but Munafuyu and Hyouga rush there, and the insect ghost Anayama Mushisuke also appears. Munefuyu is forced to fight against Anayama, but Mitsugon appears and overwhelms Anayama. Mitsugon entrusts Shichiyo to Munefuyu and challenges Satsusuke. Munafuyu tries to leave the place, but is attacked by Anayama. . .

(https://ja.m.wikipedia.org/wiki/%E9%9A%BB%E7%9C%BC%E7%8D%A3%E3%83%9F%E3%83%84%E3%83%A8%E3%82%B7)