Sabbath Leaflet is one of the magical items described in Monster Girl Encyclopedia World Guide III: Sabbath Grimoire.
Guide Book Entry
A leaflet the witches of sabbath hand out to people in the street for solicitation. It is intended to draw humans into Sabbath, however, at first glance it seems as if only an advertisement for a town baker or the teachings of the Chief God are written on it.
Magic power is woven into the leaflets, and shows a vision leading to Sabbath to those who hold it in their hand. "That body overflowing with magical power, manipulating magic beyond human knowledge is yours" "A forever young and cute existence, that can easily steal the heart of a loved man is yours" "Spending everyday drowning in lust and corruption with young girls is yours" The illusions the flyer shows are "Sweet Words" used by Sabbath for solicitation, the truth behind it is possible to realize after joining Sabbath. It is projected into the head in the form of a dream while sleeping, or impulsive momentary visions. Despite not being real, it is accompanied by a strong sense of reality.
And then, to those fascinated by the vision the leaflet brings, and who have come to desire it from the bottom of their heart, the "Sabbath Leaflet" reveals its true form, and shows the path to making that dream a reality. In doing so, you will be able to know the dates of Black Masses and their meeting locations, along with attaining qualifications for participation.