After hearing the system prompt, Chen Cang was stunned!


    Turn around and look at this humble booth.


    Behind him was only a man who did not seem to be outstanding, and there were not many onlookers around.


    Moreover, the most important thing is that this booth does not display any special materials or scientific research products, only a thick stack of paper.


    It''s not a book!


    The man''s expression is very decadent, which can''t be said, but it gives people a very lost look.


    Chen Cang said hello.


    "Hello!"


    male