The soul society originally created my blade. But at first my blade was not wanted by the soul society. Now that I can use it to it's full potential they still do not have the slightest interest in my blade. When I founded my blade they where going to destroy it. To release the demon blade's power you have to chant ''awaken,awaken, o great demon of my blade''.
You have to have a lot of battle experience before you can say the chant. When saying the chant you have to mean it because when you say the chant your pledging your life and your soul to work with the demon in your blade. A zonpacto can not compare to a demon blade's power. My name is Nacatori and I have both helped others and myself master the demon blade. The demon in the blade is your inner demon and like a zonpacto you have to call out it's name.
The wielder of a demon blade not only gets the power of the demon through your blade it goes through your whole body. But you have to keep the demon in its place or it will consume you. The more battle experience the lesser chance of the demon consuming you because the more you fight the more power you gain. Once your demon becomes compatible with your power it will work with you and give you its power. My demon's name is reaper and he is very powerful indeed. See you in the next installment in demon blade.