"Then I... I'm lucky." Quan Dongming withdrew his hand, shook it twice, and didn't get dislocated, and the smile crawled onto his face again, "Of course, I'm your strong... Dong Brother Ming, how can I blame you."

Quan Dongming is also very clever, and makes some slips of the tongue when appropriate, which makes Qin lelan believe that he is her brother Lie even more.

That's how Pei xuanzhi made this plan. They can't tell Qin lelan directly that Quan Dongming is her brother.