Jiang Qingcheng is a typical "disciplined top student". His parents' strict discipline has made him accustomed to suppressing all emotions. His grades are firmly at the top of the list, and his words and deeds are exactly the same. The only exception is that he made one exception in high school - he accidentally kissed Lin Xu, the little sun who was always chasing him.
Lin Xu was extremely talented in science, but was always lagging behind in Chinese and English. However, after hearing Jiang Qingcheng's words, "We are going to the same university," he plunged into the hard work of repeating studies, made up for his shortcomings, and entered the same school as Jiang Qingcheng, who also majored in the same school.
After the reunion, Lin Xu was still the focus of the crowd, and there was also an enthusiastic senior beside him. Seeing this, Jiang Qingcheng's heart was in turmoil, but all he could say was barbed words. While he resisted the urge to get closer, he couldn't help but silently take action when Lin Xu encountered difficulties. Lin Xu had already figured out his tough-talking temperament, and just smiled and accepted his "awkward concern", swaying him little by little, until Jiang Qingcheng could no longer hide the throbbing in his heart, took the initiative to grab his wrist, and said the words "I like you" that he had been holding back for several years.
Intention: stipulate how it is possible to control the heartbeat