C393 Wu Daliang's Interpretation

Wu Daliang's words confused me a little. Did Emperor Zhang change? Where did it change?

I was a little confused.

"Hehe, in the past, Emperor Zhang was decisive in his killing. He would rather kill a thousand wrongly than to let off a single one. However, he only asked Yan Yunfei about Yan Yunfei last time, he didn't ask you. If it was before, hmph