Possibly, a mirror-writing of 誠.Flag of Kaientai, called "nibiki"(二曳).I came, I saw, I conqueredLet your rapidity be that of the wind, your compactness that of the forest.
In raiding and plundering be like fire, be immovable like a mountain.
The battle standard used by Takeda Shingen,Sanada Yukimura's nobori. (Rokumonsen nobori)Shinsengumi's dandara-moyou.