For Duanmu Huai, this was just another ordinary matter; as long as no one died, he couldn't be bothered. Although due to Duanmu Huai's intervention, Sato didn't actually kill Jiutoulong Naito, and it was just a momentary impulse, but in any case, that was attempted murder.
After a private discussion, Sato decided to drop out of school.
As for Jiutoulong Naito...
In front of Duanmu Huai, Jiutoulong Naito no longer had that smug look as before. Although she was very angry at the time, upon reflecting later, she realized she was at death's door, which quite frightened her. Moreover, she had previously boasted arrogant remarks, angering many students. It wasn't just Sato she provoked; she used to think that since she was from the Nine-headed Dragon Group, nothing could happen to her.
But it turned out someone really dared to kill you!
If it weren't for Duanmu Huai stepping in, Jiutoulong Naito would have become a corpse by now.
Who wouldn't be scared?
