Group 1 - The article discusses the legal responsibilities of various parties involved in the "medical beauty group housing script killing" marketing scam, emphasizing that the medical beauty service institution is ultimately responsible for the contractual obligations to consumers [1] - It highlights the roles of beauty salons as intermediaries and the misleading actions of individuals referred to as "Ka Jie," indicating that they also contribute to consumer fraud [1] - Consumers who suspect they have fallen into this scam are advised to request a contract upon payment, ensuring that the payment account matches the name of the medical service provider, and to keep records of all transactions [1]