Jing Chu took Yang Mianmian to the beach and told her that starting from today, he would train her so that her ability would no longer be a burden to her. Jing Chu said that if you want to control your ability, you must first understand it and accept it. He asked Yang Mianmian to distinguish the sound of each wave, find her favorite wave, and remember its audio. In this way, she can think of this voice among other noises. Seeing Jing Chu help himself to record the sound of the waves, Yang Mianmian was very moved.
Jing Chu hoped that Yang Mianmian could tell himself why Chen Ming kidnapped her and what he said during the kidnapping. Yang Mianmian rejected his question on the excuse of headache.
Jing Chu asked the courier what happened when Chen Ming came to Yang Mianmian. The courier looked up the registration form and found that the courier sent to Chen Ming was not registered. He suspected that this was probably because someone forged the express delivery order and threw it in when he was not paying attention. In desperation, Jing Chu had to bring Yang Mianmian to the trash can and found the express box. The technical team analyzed the express box and found no useful information. The math problem that appeared at the scene of the crime was the 1994 college entrance examination chemistry paper. Liu Daren and others are very puzzled, why the murderer asked Chen Ming to do the college entrance examination questions.
Jing Chu came to take over Yang Mianmian. During the chat, he and Yang Mianmian mentioned his father and told her that his father was a scientist and he also wanted to become a scientist. Yang Mianmian feels that Jingchu who is a policeman is better, being fair in law enforcement, meticulous, upright, and destructive for the people.
Zhou Zisheng invited Liu Ruyu to a French restaurant for dinner. For this reason, he went home and changed into a very formal dress. In the restaurant, Zhou Zisheng could not understand the French menu, which was very embarrassing. Fortunately, Liu Ruyu helped to order the dishes. During the chat, Zhou Zisheng was very mindless and said that Liu Ruyu had a generation gap with himself. This made Liu Ruyu very angry, and left without even finishing the meal.
Jing Chu brought Yang Mianmian to the beach to do exercises and told her to sleep well, study hard, and get admitted to a good university. During the chat with Yang Mianmian, Jing Chu guessed that when Chen Ming was killed, the 323 on his forehead was the murderer's college entrance examination score, and he hurriedly told his colleagues about the matter. After checking the college entrance examination records of that year, Liu Ruyu found that there was an examinee named Chen Ming who had scored 323 points.
Jing Chu and Chang Yan came to Chen Ming's house and unexpectedly learned that Chen Ming ran away from home after the college entrance examination was over. Chen Ming's mother said that after the college entrance examination results came out, Chen Ming became crazy and always said that his college entrance examination results were wrong. Looking at the certificate on the wall, Jing Chu believes that Chen Ming's grades from elementary school to high school are excellent and stable, but his scores in the college entrance examination were only 323 points, most likely because someone had stolen his grades.
Chen Ming’s high school teacher recalled that Chen Ming was a genius in science and his chemistry scores were always full marks. The Department of Chemistry at Nansung University was his first choice.
Yang Mianmian brought Li Yao to Nanxing University to investigate the express delivery, but fainted unexpectedly. Before fainting, Yang Mianmian asked him to post to Jing Chu. Jing Chu hurried to find her and took her home. Listening to Jing Chu's heartbeat, Yang Mianmian woke up. In order for Yang Mianmian to recover as soon as possible, Jing Chu took the initiative to let her be close to him. Yang Mianmian smelled a strange smell on the express box on himself and Jing Chu, guessing that the incident was related to the security of Nanxing University, and hurried to look for him. After questioning, Jing Chu and Chang Yan guessed that Chen Ming was working as a security guard at Nanxing University. The reason for Chen Ming's revenge was because another Chen Ming took his life.