C686 A Sword That Deviates from the General Trend!

Su Bai's words made Chang Qingzi a little confused. Of course, he couldn't ask what was written in the letter. If it was related to the Alchemy Branch, he would naturally tell him.

However, Su Bai did not give any instructions at this moment. Obviously, this matter had nothing to do with the Alchemy Branch. Thinking about Li Mubai's relationship with Su Bai