Oguna

Synopsis:

Once there was a military force called "Amamikado" which attacked different nations and extended its area. There were two sovereigns in Amamikado. The more youthful sovereign was named Oguna. His dad, the Emperor of Amamikado, prepared him as a professional killer. Oguna was eager for energy to help his dad. This is a story of a professional killer before he meets Izumo.