In which episode did Sylvia fall in love at first sight when she saw Zhong Ling?

In the fourth episode, the origin of Sylvia’s love at first sight for Zhong Ling was explained.

He and Zhong Ling fell in love at first sight. That year, he accidentally saw Zhong Ling's photo in the photo studio window, so he started looking for her on the street. Unexpectedly, he met her by chance on the street later, but... If Zhong Ling got into his car the first time they met, it wouldn't be worthy of him coming to propose.

After Xi Weian left, Zhong Yu asked Ji Yu who was hiding aside to come out and wondered why her eyes were red even though she was fine. Ji Yu covered it up by saying that her eyes were blurred by sand. Back in the room, Jiyu shed tears thinking about the past: that year, her father repeatedly asked her friends to help her and Xi Wei'an. Jiyu was afraid that she would not be able to afford a higher education, so she prepared to take a photo as a gift. Early in the morning, she took Zhong Ling's help. He went to the photo studio to consult. Zhong Ling saw that Jiyu was still dissatisfied after changing more than a dozen sets of clothes. After learning the reason, he took off his earrings and put them on Jiyu. Only then did Jiyu take the photo with satisfaction. Later, the photographer discovered that Zhong Ling was extremely beautiful as she sat reading a book and waiting, so he secretly took a photo of her and hung it in the window of the photo studio. Unexpectedly, this move actually contributed to the fate between Zhong Ling and Sylviaan.