This isn’t a famous urban legend, but it’s spread quite widely among those interested in urban legends.
As the story goes, when people are facing difficulties, they might receive an invitation to participate in a “ceremony for the talking demon.” If you can survive to the end of the ceremony, the demon will help you fulfill your desires.
Truthfully speaking, this kind of urban legend isn’t rare, that if you carry out a certain ceremony, your wish can be fulfilled, or that if you carry out a certain ceremony, you can know the future. Some versions of this urban legend can be dangerous.
But what’s dangerous about the “ceremony for the talking demon”? If the conditions for having your wish fulfilled are that you have to survive to the end of the ceremony, that means that there is the possibility you might die during the ceremony.
Why is it that the demon will help you? This part is hard for me to believe. After all, in the present, belief in demons and ghosts is weaker and weaker…maybe there’s something behind this story worth investigating.