Section 1 of this study comprises the introduction. In Section 2, we present a brief yet concise history of the fundamentals of Zeta Correspondence. While we did not delve deeply into definitions, our aim is to give the reader a sense of the breadth of research surrounding Zeta Correspondence. Section 3, turning from “expansion,” explains the “heart,” the essence of Zeta Correspondence. Section 4 carefully explains Zeta Correspondence in a cycle (one-dimensional torus), which initiates the research. Section 5 deals with the Konno–Sato theorem, which is the key to discovering Zeta Correspondence. Section 6 concludes the study by discussing some Zeta Correspondence-related topics.
