Actually, Tang Yun wasn't sure if Jing Yichen still had the habit of carrying a white handkerchief with him. It was just a fluke that hit its target. Judging from Shangguan Ning's expression, she knew that Jing Yichen hadn't changed in this regard.
Tang Yun smirked.
"All those years ago, I was really into painting. I was a fine artist too, if I may say so myself. Invariably, I would get some paint on my face, in the process of working on a canvas. Initially, it happened accidentally but later I would smear some paint on my face, on purpose. He would pull out a handkerchief and wipe it off my face. That's how he got into this habit of always carrying a white kerchief with him.The way he wiped off the paint from my face, was so endearing. Ah, those were the days!"