This phallic-headed spirit manifests following Jeanne's traumatic assault. Initially diminutive, his size and power explicitly correlate with Jeanne's desires, enabling significant expansion based on her demands for power. He declares himself an extension of Jeanne's psyche with the statement "I am you," positioning himself as both her repressed shadow and her inner masculine archetype.

His interactions involve transactional exchanges: he first requests physical touch in return for minor improvements to Jeanne and Jean's fortunes. After further misfortune, he returns enlarged to rape Jeanne explicitly in exchange for greater wealth and influence. He later reappears in the wilderness following Jeanne's banishment, revealing his identity as Satan and formalizing a pact trading her soul for magical abilities. Their subsequent union incorporates psychedelic sequences depicting time reversing to primordial eras.

Symbolically, green signifies his influence, manifesting in the green fabric Jeanne weaves, villagers' cured plague marks transforming from black to green, and the green cloak denoting her social authority. The final integration of his power grants Jeanne a vulva-shaped Belladonna flower, symbolizing her embrace of femininity and occult forces.

His presence catalyzes Jeanne’s transformation from victim to rebellious figure. Her eventual burning at the stake—a martyrdom depicted with Christ-like imagery—activates his influence across generations, implicitly inspiring the French Revolution through the awakened faces of the village women.