Because of a mother's selfishness, she replaced her own daughter with an innocent baby girl and entered the ninja family, which changed their lives. Twenty years later, they all returned to their respective places by accident. Some fell in love with the enemy, some fell in love with their own lady, and some fell in love with their own sister. In order to protect the people they care about, everyone does not hesitate to sacrifice themselves.
Who will have the final battle with whom? Can the hand that picked up the sword bear to swing it down?
A story about the development of modern Japanese ninjas...
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