The adoptive mother of Opale, known in the French version as the mère adoptive d’Opale, is a minor but meaningful character in the anime Queen Millennia (La Reine du fond des temps). She and her husband own and operate a modest ramen shop, and they have taken in the young woman known to Earth as Yayoi Yukino as their daughter. This older couple provides Yayoi with a stable, ordinary human household above the restaurant, allowing her to blend seamlessly into everyday life while she carries out her secret mission as the Millennial Queen from the planet La-Metal.

In terms of personality, the adoptive mother is warm, hardworking, and genuinely caring. She treats Yayoi as her own child, offering her affection and a sense of belonging. Her motivations are rooted in simple family devotion: she wants to support her daughter, run her business, and live a peaceful life. She is not privy to Yayoi’s extraterrestrial origins or the impending cosmic threat; from her perspective, Yayoi is simply a helpful assistant at the observatory and a beloved family member.

Her role in the story is primarily that of a grounding presence. The ramen shop serves as a safe haven and a cover for Yayoi’s double life, and the adoptive parents provide emotional normalcy amid the escalating crisis. The relationship between Yayoi and her adoptive mother is one of mutual affection and trust, though it is strained by the secrets Yayoi must keep. The mother shows no special abilities beyond her skill in running the restaurant and her capacity for nurturing. Her character does not undergo significant development; she remains a steady, kindly figure throughout the series, representing the human warmth that Yayoi comes to value and ultimately fight to protect.