Nobuyuki Yu is the foreman for most, if not all the poppies around Ryoko making him some what more important than most of the samurai that live in the walls of the city.
Yu has shown that he dislikes ronin or possibly samurai in general. Which is …
Watanabe claims he is but a simple merchant looking out for the Heimin of Ryoko, the merchants at any rate.
Watanabe claims he has an option of stripping [[:zhao-shiro | Zhao Shiro]] of his power, though it is questionable why he would do so.