def _metadata_fandom(soup_tag):
    """
    .. versionadded:: 0.3.0

    Parses the story metadata for stories shown on a user's profile, returning
    the fandom.

    :param soup_tag: Tag containing <div class="z-list favstories" ...>
    :type soup_tag: bs4.element.Tag class
    """
    return soup_tag['data-category']