After their son is murdered a couple raise a second son to avenge him
In ancient Korea, a king trains his son as a warrior in order to overcome a strain of inordinate gentleness he sees in him. His intentions are shown to have succeeded when the boy, now king, banishes a poet friend of his for improperly criticizing him. In modern Korea, when a girl is killed for no reason by her teacher, her father vows to get revenge for that someday. The killer has vanished over the border into China, and the father has remarried and had a son, whom he trains to carry out his revenge.