Deep in a black forest, Luna, the feared Witch of Champignon, lives alone in her poison-mushroom cottage. Her touch brings poison, yet her potions heal all who take them. No one knows who the maker is, but still, the kindhearted Luna keeps brewing potions. Then one day, a mysterious, dreamlike encounter transforms her life, sparking a magical tale of love, adventure, and unexpected connections.
A young witch living deep in the forest occasionally visits a nearby town to sell her medicines and buy books.
Enchanted with the charming boy she saw in town, Luna draws a magical picture and falls into a forbidden love.
Luna and Claude rescue an injured boy from the river before realizing that his body holds a terrible secret.
Luna pleads with the black witches for a chance to raise the boy and teach him magic so he can avoid his fate.
Luna remembers her times with the Cat Witch, a troubled girl who helped open Luna's eyes to new experiences.
When Claude notices Lize struggling with his magic studies, he scolds Luna for being too lenient with the boy.