Waistcoat Mania

Grandpa left, leaving three houses in the third ring road for his eldest grandson to show off his appearance, and 30 billion pocket money for his eldest granddaughter. Then he called me "turtle grandson" and walked to the bedside. He handed me a button number with great solemnity... Well, it was still a six-digit number! Later I found out that the old man had really left, with no special meaning, and that there was not a single friend in the KouKou account, only a 'Demon Chat Group'. The old devil who has been dormant for twenty years has reappeared in the world, holding a big vest in hand, playing with the world. People have thousands of faces and thousands of vests! You guess? Which one is the real me!