Mitsudomoe

Three girls—Mitsuba, Futaba, and Hitoha—are known collectively as the "Marui Sisters." Each has a distinct personality: Mitsuba is precocious and sadistic, Futaba is lecherous and muscular, and Hitoha is enigmatic. As triplets in Class 6-3, they engage in playful and unpredictable behavior, causing mild chaos in their daily school life.