Author's Note: Story : Japan is constantly trying to keep his traditions alive. Thus, this fight symbolises the fight of two opposite generations. Ying embodies the ancient generation from Sekigahara, he is an old general. Yang embodies the new one, with no longer respect for the elders, he just want more power and a western way of life.
More details and artworks here : http://o-nobody-o.deviantart.com/