Start by Pretending to Be a Passerby Fan

The protagonist Lin Fan is unemployed and gets a disguise system. He pretends to be a stranger, a fan, a friend, a relative... He can get a random skill, money, or system reward, buff, etc. From the stranger. The protagonist gains skills and money along the way and enters the upper class. Unexpectedly, one day he pretends to be a cultivator friend, and he is out of control from then on.