The voice wasn't Yin Miaomiao's, but that did not completely rule her out as a suspect. The incident at the tea banquet seemed rightful at first glance, yet there were certain details that were peculiar—with Yin Miaomiao's behavior being one of them.
Having learned these clues, an entire murder process was vaguely taking shape.
Someone was targeting Qin Silang. This person did not wish to kill him directly; rather, the aim was to ruin his reputation first, then to have him suffer in agony, despised by the world and ultimately executed for murder.