C1758 Principle bottom line

When Su Changqing came to find him that day, he seemed to be rude and his actions were weird. This did not seem to be his style at all.

Moreover, what does the security department have to do with him, Su Changqing?

Although Lao Sun and Su Changqing's relationship wasn't bad, he still had his bottom line and at the very least, a sense of justice!

If Su Changqing made any mistakes in this matter