The Korean foodservice industry has been experiencing a rapid shift from traditional Korean restaurants toward a dining-out market centered on family restaurants and fast-food establishments, driven by rising income levels, the increase in dual-income households, the expansion of leisure time, the growth in single-person households, and changes in lifestyles. Accordingly, this study selected four stores with entirely different regional characteristics (Incheon Airport store, Gangnam store, Seoul National University store, and Donam-dong store) from among the outlets of a large foreign-brand K fast-food franchise—the first of its kind introduced in Korea in the fast-food industry—and investigated the causal relationships among the PZB (1988) service quality factors, fast-food-specific service quality factors, customer satisfaction, and repurchase intention. According to the analysis results, to improve customer satisfaction and repurchase intention, among the five service quality factors of PZB (1988), intangible service quality had no effect on customer satisfaction, while store quality and food quality, which require substantial fixed capital investment, were found to have an effect, with food quality identified as the most important quality factor for customer satisfaction.