The supermarket market in Japan is at the forefront of a major digital transformation, primarily driven by the integration of artificial intelligence (AI) technologies. These innovations are redefining not only the customer experience but also the internal operations of supermarkets. The adoption of AI for personalized advertising, enhanced security through algorithmic video surveillance, and the optimization of the shopping experience via connected carts are at the heart of this revolution. However, these technological advances pose significant ethical and regulatory challenges, notably in terms of privacy protection and employee surveillance.