That summer, she was the school beauty with a ponytail, and he was an unknown poor boy. Ten years later, she became the director of a foreign company, and he was still a junior technician. A collaborative project reunites former classmates. The little secrets hidden behind the scratch paper and the secret love that have never been spoken are quietly fermented in the eyes of adults. There is no golden finger, no counterattack and slap in the face, just two ordinary people using the most clumsy way to make up for the regrets of youth.