The Sengoku period of the separatist rule came to an end, and the final duel between the Tokugawa family and the Toyotomi clan who divided the world was also close at hand. Since then, there has been a mysterious girl with brilliant swordsmanship on the bloody killing battlefield. Those who are eager to achieve the great cause of unifying the world, hope to end the war and usher in peace. It's just ironic that the sacred mission of the big figures of the Tokugawa forces is pinned on a girl killer. The task of the killer was to assassinate all the Daimyo under Toyotomi who were confronting Tokugawa. Every time the girl swings the knife, her heart struggles fiercely. The girl's name is Amo.
In order to become "the strongest killer", Amo even stabbed to death his childhood sweetheart and young boy Nazhi who received special training together. As the highest swordsman in the assassination team, Amo witnessed the death of his partners one by one. Faced with the endless killing mission, Amo was suffering from past injuries, but the sword in her hand was even more ruthless. Now, she and the only remaining companion Nagara will assassinate the last target-the leader of the rebellion: Masayuki Sanada.
At this time, the appearance of a person made the sword in Amo's hand begin to waver. Silver Horn rescued Amo from the danger of the enemy's pursuit, and the warrior looked exactly like the dead Nazhi. Being with Yin Jiao, even the brief warmth gave Amo's tired heart a trace of solace. Amo, who was struggling between hunting and being killed, began to wonder whether his mission to seek stability in the world with blood and tears was worthwhile.
On the other hand, the strongest ninja of the Sanada Army, Kongru, is the guard of the above-mentioned Yejiahezhong, leading masters such as Liubo and Earth Spider to be ready to face Amo. The decisive battle moment has come quietly, but at this time Amo is worried, because Silver Horn has also been involved in this battle and has become his enemy.
As a tool for power struggle, a cruel cold-blooded killer, Amo was extremely confused and struggling in this fateful killing
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