Guardian
Halted, the man scornfully turned around to looked at the girl. He knew Li Na is good with mathematics as he had discovered it when once to teach her a lesson he wrote a tough problem and asked her to solve that on the board. Since he heard about her that she's a wasted child he did not anticipate that the arrogant girl will solve it in minutes and in return mocked his teaching and him for giving a kids problem that she had solved in elementary school. The whole class had made fun of him and in retort, his vengeance unleashed.