Shi Chun said with some helplessness, "Miss Mulan, you are in the prime of your youth, pure and precious as jade, this pretext is truly not good. It will tarnish your reputation."
He wasn't particularly principled. Everything else was negotiable except for this matter, which he really couldn't accept. He feared that a reputation as a fiance might be heard by the one he loved.
Furthermore, he didn't want to ruin someone else's reputation. He had inquired about the situations outside; it was still okay to just fight and kill, but there were some things that were really unacceptable to do, especially for disciples of a famous sect—messing with scandals could lead to death.
He didn't want to touch such situations where he couldn't enjoy the benefits but ended up causing trouble.