The Queen Who Never Aged — Episode 39

Isolde, Queen of the Kingdom of Aveyron, retains her youthful appearance well into her forties thanks to the protection of the realm's treasure, the Ley Line Crystal. She returns secretly to attend the engagement banquet of her only son, Julian, only to be mistaken by his fiancée, Mabel, for a mistress attempting to seduce the prince; she is subjected to public abuse and nearly loses her life. Even after her true identity is revealed, Mabel remains unrepentant, falsely claiming to be pregnant with Julian's child—when in reality, she had consumed water from a dark magic well in her desperate quest for an heir, allowing a demon to take up residence within her. Upon its resurrection, the demon seeks to destroy everything; however, Isolde, Julian, and King Gareth of Nordgard—bound by their hearts of pure goodness—join forces with the aid of the mystic Merlinus to slay the beast. Julian is crowned king and unites the continent, while Isolde and Gareth ultimately retire to spend the rest of their lives together.