C1193 I suspect everyone

Lian Ruyue placed Cheng Jun's hand in her own and gently said, "Cheng'er, don't be afraid." As he spoke, he stabbed the silver needle into his white and tender fingers, causing a drop of blood to appear. A moment later, the needle slowly turned black.

"There really is poison!" When Feng Yunzheng saw the changed color of the silver needle, he grabbed Lian Ruyue's hand