"Shanshan... Chengchi is missing."
Gu Enen had confronted Gu Lanshan about that matter involving Han Chengchi. Although it eventually resolved with Sheng Shi's involvement, once such close sisters had briefly turned against each other. Although Gu Enen had apologized to Gu Lanshan afterwards, there were still some awkwardness and barriers left.
Gu Lanshan also worried that her relationship with Gu Enen would drift further apart. Thus, she was particularly nervous when answering the call. When she heard what Gu Enen said, inexplicably, she felt a bit guilty and instinctively started to explain, "Sis, Brother Chengchi isn't with me."
