Su Chengcheng learned that Qi Mu developed the prototype machine to retrieve his memory, and decided to help him retrieve it.Everyone found that there was a shortage of living expenses, so they tried to make money.Gu Xiaoxiao proposed part-time jobs, with the boys distributing flyers, Su Chengcheng and Gu Xiaoxiao acting as caretakers, He Miao playing games, and Lu Man working as a photographer, but nothing went well.Lu Manxian was harassed and rescued by An Yu.Everyone's commission was maliciously deducted and their income was meager.Meng Xing suggested playing games to make money, and Qi Mu suggested upgrading the campus network to make money, so they distributed flyers.An Yu was discovered by An Shang when he was handing out leaflets. After a poor cover-up, An Shang walked up to Lu Man and teased Meng Xing who suggested drawing lots to decide whether to go to Shou Jingyuan to help retired faculty and keep vigil. Meng Xing, Qi Mu, An Yu andSu Chengcheng, Lu Man, and He Miao were selected.After being divided into groups, they each faced different challenges, such as Meng Xing and He Miao being strictly excluded, An Yu and Lu Man being mistakenly identified, and Qi Mu and Su Chengcheng aware of Teacher Xiang's concerns.At night, Meng Xing called Qi Mu Anyu because of an emergency, but unexpectedly found Teacher Xiang standing alone outside Shoujing Garden.They asked Director Liang and learned that Teacher Xiang wanted to take another look at the asteroid for his wife.For this reason, Qi Mu repaired an astronomical telescope and worked with Su Chengcheng to realize Teacher Xiang's dream.