Episode 7 recap: Courage to admit mistakes, never change.

Lin Qian Yu's family went back to their home country, while Lin Qian Qian returned in a wheelchair, which worried Lin Qian Yu. Fortunately, Lin Qian Qian explained that it was a wheelchair purchased for their grandfather, which relieved Lin Qian Yu's concerns, and he pushed Lin Qian Qian back home.

Lin Qian Yu is particularly good at taking care of people and made proper arrangements when receiving their parents and sister, which made their parents very happy. Meng Hui Yuan made plans to go shopping with Liu Yi Xian, which was her first time, and she was extremely nervous. While waiting for Liu Yi Xian, she kept calling him.

Liu Yi Xian invited Bu Han Lu to join them for shopping, which made Meng Hui Yuan very happy. The three of them visited many accessory stores and made great findings, so they decided to celebrate at a record store. Meng Hui Yuan chatted with Liu Yi Xian about the joy of shopping for accessories, while a man kept staring at Meng Hui Yuan, and it was then that Bu Han Lu noticed the problem.

Bu Han Lu realized that Meng Hui Yuan had her period and angrily confronted the man, then covered Meng Hui Yuan's waist with her clothes. After Meng Hui Yuan learned about the issue, she immediately went to the bathroom to clean up, and their relationship grew closer as a result.

The Lin family had a reunion dinner, and Lin's father asked about Lin Qian Yu's performance at school to see if there was any improvement in his grades. Then, he praised Lin Qian Qian. Lin Qian Qian had excellent grades but couldn't attend school due to illness. Lin's father only hoped that Lin Qian Yu could be as excellent as his sister.

Knowing that his own academic performance was not impressive, Lin Qian Yu could only talk about the recent praise he received, so that his father would understand the situation when attending the parent-teacher meeting. Lin's father and mother explained that they had to attend a consultation at the city hospital and couldn't go to the parent-teacher meeting, which greatly disappointed Lin Qian Yu.

Seeing Lin Qian Yu feeling down, Lin Qian Qian volunteered to attend the parent-teacher meeting at school to comfort him. Lin Qian Yu told Lin Qian Qian about the gloves incident and asked about the reason for losing the other glove, but Lin Qian Qian insisted it was a secret and refused to tell Lin Qian Yu.

Lin Qian Qian brought a gift for the teacher, Jing Mu, and asked Lin Qian Yu to help deliver it. Meanwhile, Bu Han Lu wanted to get the keys from Jing Mu to enter the observatory, so he asked Lin Qian Yu for help. Bu Han Lu and Liu Yi Xian approached several teachers in the school, but none of them agreed to give them the keys. They had no other options, so Bu Han Lu came up with an idea to steal the keys.

Lin Qian Yu refused to participate in the theft, but Bu Han Lu directly informed the rest of the group about it. Lin Qian Yu came up with a solution, and everyone praised him continuously, which made Lin Qian Yu feel a bit inflated. He reluctantly agreed to steal the keys. After Lin Qian Yu agreed, Bu Han Lu devised a plan for stealing the keys and coordinated the efforts of the group of seven to execute it.

On the day of the parent-teacher meeting, parents gathered at the school for the meeting. Liu Yi Xian was responsible for monitoring the situation. When the principal went to the restroom, Liu Yi Xian informed Liu Yang and Chen Xiang to shut off the water valve. The principal noticed that there was no water in the restroom and called Jing Mu to fix it. Meanwhile, Lin Qian Yu and Bu Han Lu went to the office to steal the keys but couldn't find them despite searching for a long time.

Jing Mu couldn't find the reason for the water stoppage and went back to the office to get a toolbox. At the same time, Meng Jin, the mother of Hui Yuan, accidentally stepped into a muddy pit and dirtied her shoes, so she went to the women's restroom to clean them. When Jing Mu returned to fix the faucet, Meng Jin helped him while Liu Yang and the others reopened the water valve and returned to the women's restroom to block the door with Meng Hui Yuan.

Due to a mistake by Liu Yang and Chen Xiang, they opened the water valve to the maximum setting. Jing Mu, who hadn't finished repairing the faucet, noticed the water pipes shaking, and suddenly water started spraying out uncontrollably. They tried to stop it but couldn't. The water kept spraying, and the door to the restroom was locked. Jing Mu and Meng Jin were both soaked.

Lin Qian Yu and Bu Han Lu couldn't find the keys and learned about the flooding in the restroom, so they had to stop their actions and go back to help. Liu Yang removed the mop that was stuck in the door and couldn't be pulled out. Jing Mu and Meng Jin were finally freed. Meng Jin was grateful to Jing Mu for lending her a piece of clothing and gave him a business card as a gesture of thanks.

Jing Mu went to shut off the water valve and asked the group of seven to figure out a way to block the water outlet. They ended up having a water fight in the restroom, trying various methods to stop the water, but in the end, everyone got drenched, and the water couldn't be stopped. Afterwards, the group of seven was scolded by the principal, who also threatened to disband the Astronomy Club if there were any more incidents.