Xiaoxiaxia on the Shoulder

Haruki Murakami said that once you realize you have a gun in your pocket, you will look at the world differently. When I realized I had a mind-reading device on my shoulder, I looked at the world differently. What exactly is the difference? What kind of cheating life will the protagonist gain by using this mind-reading artifact? How many favors of the opposite sex do you attract? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.