This work is adapted from the novel "Tomato". I was isolated by the whole class for three years. The principal read the letter of report I wrote. Written by Pan Kun. Su Nian, a third-year junior high school girl, was instructed by her class teacher Qian Xiuzhen to lead the whole class to be isolated for three years because her mother did not pay the 800 yuan Teacher's Day gift. She silently recorded 412 pieces of evidence of bullying, recorded 47 key recordings, collected screenshots and falsified materials in files, withheld it for three years and exposed the truth in public at a parent-teacher conference. She successfully reported the offending teacher and malicious classmates, finally corrected the file, won the high school entrance examination, and ushered in a new student.