Parents protest against grades for child of former member of prestigious school in South Korea

It has come to light that a parent at Seoul National University, a prestigious national university in South Korea, directly protested to an assistant professor over their child's grades, sparking controversy.
According to the anonymous bulletin board "Everytime" at Seoul University on the 30th, Mr. A, who identified himself as an assistant professor of liberal arts at the College of Science, posted on the 26th
A posted on the bulletin board with the title "Parents Complaining About Grades." Mr. A said he had received an email from a parent saying, "Parents are stating that their children will never achieve such grades."
"There's no way I could get a grade. They asked me to grade it again and give them a higher grade," he explained. "Even after reading the contents of the email, I still can't understand what's going on."
"I sent the student an email saying, 'Your parent sent me this email, so please make sure this doesn't happen again,' but
According to the email made public by Mr. A, parent B said, "When I checked my child's grades, I saw that he was given a C. I was so surprised that I couldn't do anything about it," and added, "I wanted to encourage him to go to a preparatory school.
Is it possible for a student to receive a C even though he graduated with excellent grades and has an excellent understanding of university mathematics and physics? Under any circumstances, he is not the kind of student who would receive a C on a relative basis.
" He continued, "What are they trying to achieve by grading in such a haphazard way?" and "This case shows that the grading system at the prestigious Seoul University is haphazard.
"I was made aware of this," he said. He then turned to Assistant Professor A and said, "I heard that this particular subject is graded by an assistant professor, but you are an assistant professor, not a professor."
"The results are absolutely unacceptable," he said angrily. B reportedly demanded that the professor re-grade the papers himself and give the students appropriate grades, and that he would consider taking legal action if the professor did not comply with this request.
Mr. A then reported the matter to his professor. Mr. A said, "The professor seems to have decided that there was no problem with the grade processing and intends to just ignore it."