Episode 15 recap: Li Ran is preparing for a physics competition.

The story takes place in 2016. That year, Li Ran and his classmates played a prank on their homeroom teacher by intentionally splashing paint on his car. Li Ran had excellent physics grades and would often rank first in the class. Although Li Ran didn't say it out loud, he was secretly pleased with his achievements. However, the homeroom teacher never believed that Li Ran's grades were genuinely earned. The teacher even suspected that Li Ran was cheating on his exams. In the first and second years of middle school, Li Ran always ranked last, so his sudden academic improvement made it even harder for the teacher to believe.

Li Ran felt very frustrated with how he was being treated. He initially wanted to argue with the teacher, but when he saw the teacher's daughter present, he had to suppress his anger and leave. However, the school eventually discovered that the teacher was secretly offering private tutoring, and the principal believed in Li Ran's abilities. The homeroom teacher was subsequently suspended.

Lei Ming told Li Ran that their physics teacher, Bi Ke, had always praised him for his talent. Li Ran even received an award in physics during his second year of middle school. Lei Ming wanted to enroll him in a physics competition, but Li Ran immediately rejected the offer without much thought.

When Li Ran returned home, he found a physics book deliberately placed on his desk by Shen Yao. In reality, these books were very useful to Li Ran. Shen Yao came downstairs and mentioned that they should compare their performance in the upcoming physics competition. Shen Yao even claimed to be able to help Li Ran join the physics group. Li Ran didn't respond to her proposal.

With the help of Lei Ming, the live-streamed study sessions with Bian Xiaoxiao officially began. Bian Xiaoxiao became an internet sensation while studying, making her more interested in her academic pursuits. In a hurry, Yu Yang ran to the classroom to inform Li Ran that he had advanced to the finals of the physics competition. Everyone was thrilled for Li Ran. Initially, the teacher didn't want Li Ran to join the competition class, but after Shen Yao's recommendation, the teacher agreed.

At first, nobody could believe that Shen Yao was genuinely able to help Li Ran. Li Ran joined Shen Yao's tutoring class and noticed that her photo was displayed on the school's promotional bulletin board. It was evident that Shen Yao's academic achievements were widely recognized.

Li Ran also considered attending the tutoring class there, but when he saw the price was 9,800 yuan, he immediately gave up. After all, he didn't have that much money at the moment. From now on, he would have to rely on himself to prepare for the exams. Cheng Yu Shan also gave Li Ran some physics materials she had compiled, which made Li Ran quite happy.

Bian Xiaoxiao also livestreams with her classmates to prepare for the college entrance examination. Previously, they used to livestream secretly, but now they can openly film their every move. In fact, Bian Xiaoxiao also uses this method to supervise everyone's studying. Unexpectedly, there are a lot of viewers watching the livestream, and even students from other classes can't resist secretly watching during evening self-study.

Sang Xia is also watching the livestream. It has to be said that Lei Ming's method is indeed effective, and the teachers don't have to go to the classroom to supervise their classes anymore. Soon, students from other classes start imitating Class 11's livestreamed self-study sessions. It's worth mentioning that this method is quite effective. Every student is studying diligently, and there are no distractions.

When Bi Ke sees this, he praises them. During this time, Bi Ke tutors Li Ran privately in physics. Bi Ke arrives early with many sets of simulated exam questions and asks Li Ran to do them diligently. Li Ran is worried that he doesn't have the funds to pay for the tutoring, but Bi Ke assures him not to worry and just focus on preparing for the exam.

The school holds a meeting for the third grade. Regarding students bringing their mobile phones, Xiao Rui takes a stand against it, and Lei Ming deliberately stands up and echoes the opposition. Then he deliberately says some things that contradict their ideas. Soon, reporters come to the school for interviews and ask both teachers and students about the matter since the livestreaming has caused quite a stir online.

Finally, the school allows students to bring their mobile phones. Bian Xiaoxiao continues her livestream and cheers for Li Ran in the physics competition. Soon, Class 11 becomes popular on the internet, and many people are following this class of only five students, wondering if they can really get into the top universities. In fact, Lei Ming had his own motives for having Bian Xiaoxiao livestream, and it was also because of Mr. Wang's support that the data traffic was so high. Lei Ming meets with Mr. Wang again and soon Mr. Wang introduces Lei Ming to two other colleagues. Lei Ming has always wanted Mr. Wang to invest in his project, and this time he is very confident that it will work out.

Li Ran is about to participate in the physics competition. Not only do his classmates from Class 11 cheer for him, but also his former classmates from Longhai School come to support and encourage him. Although Li Ran doesn't say it out loud, he is very happy in his heart. One evening, as Lei Ming was walking in the school, he suddenly heard classmates talking about Li Ran jumping off a building. He was shocked and hurriedly ran to the top of the teaching building to try to stop Li Ran, but when Lei Ming arrived at the rooftop, he saw that the person there was actually a girl.