Balance
Summary: So I have taken it upon myself to describe how the Medicine Seller and his golden warrior counterpart were initially joined. This is based off of the original Mononoke TV series from 2007, not the second series where he joins up with Kayo and all that stuff.
Told from the golden warrior's point of view.
For every bad, there is a good.
For every wrong, there is a right.
For every coward, there is a warrior.
For every darkness, there is a light.
Long have I known this to be true. The sense of balance has always been around me and within me. I am the epitome of balance. I am the warrior against the Mononoke.
Balance has played a great role throughout the many cultures. The Chinese have the yin-yang, their symbol of how opposites can coincide together. The Greeks had their goddess of balance, Themis, who was depicted as being entirely separate from justice but only the sense of balance in the world. In my culture, the Mononoke come back to avenge themselves, and in order to combat them, I am needed to balance the destruction they wreak and send them back to the afterlife.
I have existed since the first Mononoke was ever created. As soon as spirits began crossing back to this life from the afterlife, I awoke and began combating them. Of course, it is our nature in this life to destroy each other; that is the balance of things. In our other life, we exist together without the destruction, as was pre-ordained. We can exist together in this life, but we cannot live with each other complacently. We belong to another life, and since the balance in this life was disrupted, we can only return to our natural life when the balance in this life has been righted.
It used to be that I roamed the face of your planet in my own form. That was so long ago. As your world grew more and more populous and the violent tendencies of man became more and more common, Mononoke began streaming into this world and life in greater and greater numbers. My true form attracts Mononoke into battle just as their form attracts me. I am a powerful warrior, but even I nearly could not survive as the numbers of Mononoke seeking me out increased. Thus I began searching for a human vessel within which I could reside, thus hiding my true form and ensuring that I would live on for millennia to preserve the balance of this world.
So here's chapter 1...sorry it's so short! Further chapters should be longer.