In Blossom Season 1 Episode 17
Xiao Sheng gets in trouble with the Silver Rain Terrace but is saved by Master Zhuo and Shangguan Zhi. Shangguan Zhi makes it clear to Master Zhuo that she only sees him as her friend and nothing more. Pan Yue gets a lead on the Ripple pattern and begins investigating the old Ghost Fire case. After hearing an old rhyme that Cai Wei used to recite to him, he realizes that Shangguan Zhi is Cai Wei and quickly goes to her.