The Quintessential Quintuplets Contact Lenses 1

This popular manga series follows the daily life of high-school student Futaro Uesugi. Academically gifted but also broke and in need of fast cash, he is hired as a private tutor for a rich family to help improve the girls grades. These girls happen to be identical quintuplets: Ichika, Nino, Miku, Yotsuba, and Itsuki Nakano. All with varying personalities, they aren't initally happy to have this new tutor in their lives, but over the course of time, Futaro is accepted and friendships grow.