Episode 4 recap: Tao Tao and Ye Fan connected on the phone.

Tao Tao was lying on the table doing her homework, but she fell asleep while writing. Ye Fan quietly sat next to her, watching her intently without moving. When Tao Tao woke up, she saw that her problems had already been solved. She looked at Ye Fan sitting in front of her and took out her phone to take a picture of him.

In 2022, Ye Fan sat alone on the ground drinking. Zuo Luo came over and snatched the bottle from his hand, asking if he was trying to kill himself by drinking like this. Ye Fan ignored his advice and snatched the bottle back, continuing to drink. Ye Fan dialed Tao Tao's number again, and this time Tao Tao answered the call. Ye Fan was thrilled to hear Tao Tao's voice. He asked Tao Tao if it was still 2018 on her side.

When Ye Fan heard "2018," he knew there was still time. He told Tao Tao that he was Ye Fan from 2022. Tao Tao didn't believe what Ye Fan said, but he mentioned many things that only the two of them knew, which made Tao Tao somewhat convinced. However, the call ended abruptly. As Ye Fan walked towards the dormitory, he heard someone crying. He approached and found that it was You You. Tao Tao, holding You You's dirty shirt, found Nan Feng and his lackeys, telling them to compensate for You You's shirt. The two of them harbored revenge and wanted to pour water on Tao Tao, but Ye Fan noticed and pulled Tao Tao away.