((These is the Nakano Sisters, Ichika the eldest,Nino the 2nd Miku the 3rd, Yotsuba the 4th and. Itsuki the youngest))

As they find their tutor because they always fail at their studies, they are despaired to pass

Ichika~Hi there! Nino ~we don't need tutor! Miku~ you have to take your responsibility! Yotsuba~Uesugi San! Itsuki~ Hmph! You again Fuutarou?!