[Zhen Da·Tongzi Qie An Gang] is the most special one among the seven famous swords of the Cao Bi family.


    This legendary weapon that killed the great demon "Shuten Doji" has an extremely strong resentment remaining on the blade, which will devour the flesh and blood of any creature that touches it, and pollute its spirit with resentment.


    In short, this is a demon sword that can hurt both the enemy and yourself.


    The ancestors of the Kusakabe family once thought of completely sealing the [Main Fighter Kieran Tsuna], but accidentally discovered that this


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