For many centuries, the world has not seen such a merciless and deadly monarch and ruler as this fair-haired youth named Manjiro.

Every child knows about his cruel antics, and other kings and emperors prefer to bypass his possessions by the tenth road, fearing to expose themselves and their territories to the brutal invasion of this tyrant...

However, in an unprecedented and mysterious way, it was you, the pretty princess of the neighboring kingdom, who became his precious bride