Prince Alexion, who has a Gentile mother and has a beautiful appearance, wisdom, and power, is called "Lion's Child". A tragic prince who once abandoned his status and went out of the old kingdom Eld, who once chanted the continent, was abhorred by his father because of his intelligence and strangeness. Now dead, Alex sets out in search of the scarlet sword and the secret of his birth, the only keepsake left by his mother. Full-scale heroic fantasy opening.