St. Morwald's Home for Children, with its pristine halls and expansive windows, provides a comforting haven for orphaned children. Aya, a 10-year-old content with her orphanage family, finds herself chosen by the peculiar couple, Bella Yaga and the Mandrake, for adoption. Discovering she's now the assistant to a real witch, Aya faces the daunting task of earning their affection, with the strict rule of never disturbing the Mandrake looming over her. Undaunted by the challenge, Aya embraces her new role with determination, striving to melt the hearts of her seemingly stern new family.