"Gotoubun no Hanayome," also known as "The Quintessential Quintuplets," is a popular Japanese manga series written and illustrated by Negi Haruba. It follows the story of Fuutarou Uesugi, a high school student who becomes a tutor for five identical quintuplets: Ichika, Nino, Miku, Yotsuba, and Itsuki. Each sister has her own unique personality and challenges, leading to comedic and romantic situations. The series explores themes of love, family, and personal growth as Fuutarou navigates his relationships with the quintuplets. It has been adapted into an anime television series and a film, gaining a large fanbase both in Japan and internationally.