Shadow Pact: Anya's Transformation (Extra Panels + NSFW Ver.) (Patreon)

Synopsis:

When a malevolent spirit possesses Anya and unlocks a dormant power within her, it triggers a rapid transformation, aging her into an adult form. As the spirit manipulates Anya's body, it discovers newfound desires and passions, igniting a sensual journey of self-discovery in its new form.