Centuries ago, gods tricked humans into slaughtering dragonkind. Obsidian hid his son Leon. Raised as a mute servant, Leon awakens dragon blood and forges great weapons. He defies the Guild, reclaims the Seal, gathers survivors and rebuilds Dragon Valley. Prophecy was faked; gods fear he will close Heaven Gate. When Astra forces him to choose between his people and a million humans, Leon saves both, uniting them. He breaks the god blade, closes the Gate, rejects the throne and establishes equality.
