If they confirmed that he was the real Lin Yi and not the Lin er they were looking for, their subconscious wouldn't connect him to the real Lin Yi, and all of Lin Yi's flaws would be useless.
And the most direct and effective way to let the other party have a first impression was to find an opportunity for Yu Zhe and Nan tianyong to come over and take a look at him.
Seeing was believing. Ordinary people believed in their eyes more than their instincts. Even powerful cultivators would find it difficult to change this nature. Before Yu Zhe and Nan tianyong locked their suspicions on him, he had to let them see his face, which was completely different from Lin er 's.
Once they cut off the connection between Lin Yi and Lin er, the danger would be solved.