Su Chen didn't say anything.
He watched Yang Bi leave.
Although today Yang Bi was a helper invited by Qin Immortal, since Yang Bi eventually did not dare to fight and admitted defeat, Su Chen would not insist on pursuing him to the bitter end. After all, his enemy was Qin Immortal.
Su Chen held little interest in killing Yang Bi.
Of course, the world isn't so kind. You help someone to try and kill me? Yet, when you realize you can't kill me and become scared, you think you can just let it go? Wishful thinking! Do you think all the good fortunes should fall into your lap?
But Yang Bi was sensible enough to say he 'owed a life' and 'would be at Su Chen's disposal in Nan'e Ancient Capital', so Su Chen didn't mind letting Yang Bi off the hook. It was like keeping Yang Bi's life on a leash.
Perhaps, when in Nan'e Ancient Capital, he might actually be of use? Convenient, isn't it?