I'm a Waiter, and I Start Off as a Wealthy Lady.

Chen Mo, an orphan who works in a top restaurant, accidentally gets involved in the life of Su Wanqing, the daughter of a wealthy family, with his extraordinary ability to observe people's emotions and his unconventional street smarts. Su Wanqing was suffering from headaches due to family marriages and internal struggles. Chen Mo's appearance was like a mudslide, and he used various strange brain circuits and counter-routine operations to easily resolve the crisis she faced. Su Wanqing "acquired" Chen Mo as a personal follower, allowing him to enter the upper class society that was full of money and wealth and was full of pitfalls as a low-level person. Chen Mo pretends to be a pig and eats the tiger, playing with the self-proclaimed rich second generation, the scheming Green Tea, and the scheming business tycoons. Not only does he help Su Wanqing get out of trouble and regain her inheritance rights, but he also counterattacks all the way, from a waiter serving dishes to a man of the hour who makes the entire city look at him.