Gai Mou and Man’U are opposites of the same coin.
Both have rejected the romanticisation of warfare that Ou Ki and Ren Pa and Shin and Mou Bu subscribe to.
However, where Man’U is deep down seeking someone to either validate his cynicism or save him from it, Shin believes Gai Mou’s blow betray he possesses the very heart of a true Great General of the Heavens.
Mou Bu and Shin will both see the best in their foes before they strike them down with their own.