Naina Mather was born with Tourette's Syndrome, which makes noises similar to hiccups. She was not only ridiculed by her classmates since she was a child, she was also rejected from 12 schools when she was studying. In the end, a principal's sentence "We will treat you like other students" made Naina feel the equal treatment she had never had before, and she also planted her dream of being a good teacher in her heart
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The 14 impoverished students in Class 9F originally attended free public schools, but because of the cooperative relationship between the government and the school, such as land leases, the Santek School accepted these impoverished students. However, what greeted them was discrimination and exclusion. Those middle- and upper-class students did not accept them at all, and teachers were prejudiced and classified them as class 9F. Therefore, these 14 poor students gave up on themselves, smoking, playing cards, and teasing their teachers in class, so they left 7 teachers one after another
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After failing countless interviews, Naina Mather finally received an offer from her alma mater, Santek School. However, what awaited her was the 9F class, the most difficult and worst grade in the school
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