On the third day of her second year of high school, Xu Youyou drew a yawning pig on her math homework book and was caught on the spot by the new transfer student Lin Xu. He pointed at the pig: "The drawing is good, but I missed one question." Xu Youyou snatched the notebook back and heard the girls in the back row whispering: "Lin Xu is so handsome." She curled her lips and drew another arrow next to the pig, pointing in the direction of Lin Xu's seat.
