The Quintessential Quintuplets (Go-Tōbun no Hanayome) is a Japanese manga and anime series that follows the story of Fuutarou Uesugi, a high-achieving but financially struggling high school student who is hired as a private tutor for the Nakano quintuplets. The quintuplets—Ichika, Nino, Miku, Yotsuba, and Itsuki—are identical sisters with vastly different personalities and academic challenges, making Fuutarou's job far from easy. Despite their initial resistance and mischievous antics, the sisters gradually come to accept Fuutarou's guidance, and he forms a unique bond with each of them. The series cleverly intertwines themes of romance, comedy, and family dynamics as the quintuplets navigate their high school years and develop romantic feelings for Fuutarou.

The story is structured around two major sagas—the Second Year Saga and the Third Year Saga. Throughout these arcs, the series explores the quintuplets' growth, both individually and as a family, as well as their evolving relationships with Fuutarou. Key arcs include the "Fireworks Festival Arc," where the sisters confront their feelings for Fuutarou; the "School Camping Trip Arc," which tests their bonds; and the "School Festival Arc," a pivotal moment that brings emotional revelations and deepens the central romantic mystery. The narrative culminates in a wedding, where one of the quintuplets is revealed to be Fuutarou's bride, leaving readers and viewers guessing until the very end. Through its engaging plot and character development, The Quintessential Quintuplets delivers a heartfelt and entertaining story about love, identity, and the bonds of family.