Among the four, Yuehuan suffered the most. She couldn't sway or twist when she walked; she had to remain upright and straight. If she made a mistake, she wasn't punished but was simply told to do it again, and again, and yet again.
Among the four, Yuehuan made the most mistakes, which surprised Yueyao. Shouldn't Yuebing have made the most mistakes? Why was it Yuehuan?