"I'll do whatever you want daozhang." He doesn't really know how much more self reflection he can really do but he is willing to do whatever the man asks of him to prove that he has improved or changed. That is all he can really do.

There are several people on the train he is sure would vouch for him if Xingchen asked them about him. But he also knows that the murder that happened has other people concerned and so no matter what he will never truly be free of his past mistakes.