5-toubun no Hanayome, also known as The Quintessential Quintuplets, is a romantic comedy anime series that follows the story of high school student Futaro Uesugi, who is hired as a tutor for the Nakano quintuplets. Each of the five sisters has a unique personality, leading to humorous and heartwarming situations as they develop relationships with Futaro. The series explores themes of love, family, and self-discovery, making it a popular choice among anime fans.