"No buts! You two have come here to confess the bad things you've done, that means you're ready for the punishment that will befall you two." Hao Qing resolutely said and rejected Lee Sera's explanation altogether.
Hao Qing was happy when the two perpetrators came and apologized, but he was unhappy when he saw that the two perpetrators refused to get the punishment they deserved.
Now that Hao Qing had rejected Shao Feng's request out loud, even Hao Qing's face was stern and showed no sign that he would spare or tolerate Lee Sera and Wu Mixi. This suddenly made Lee Sera and Wu Mixi even more nervous. After admitting all the bad deeds and apologizing for them, won't the two of them get what they deserve? What if the principal still won't spare them? Would the guarantee given by Shao Feng just be a lie?