kāi chéng bù gōng
variant of 開誠布公|开诚布公[kai1 cheng2 bu4 gong1]
kāi chéng bù gōng
lit. deal sincerely and fairly (idiom); frank and open-minded
plain speaking
Let's talk frankly and openly between ourselves.
to put one's cards on the table
kāi chéng
to be honest
to show sincerity