The titular medallion is a gift presented to young Nicole Elmi. Once the girl places the gift around her neck, she is possessed by the spirit of a dead child who was a murderess....
I'm a fan of both the novel and Xiao Zhan. Though the drama has made several changes, I appreciate how they retold the story of Tang San and the Shi Lan Ke Seven Devils. They have managed to keep things exciting and visually appealing. At its core, it remains true to the original intent of TJSS, and I think that's a great achievement of the drama