I assume by "PPC" you are referring to "pay per click" advertising.
If you are asking whether or not such a thing exists, I am pleased to report that it is 100% real. It is not merely a work of fiction or a figment of someone's imagination.
If, on the other hand, you are asking if people can really achieve positive return-on-investment from a PPC ad campaign, I am equally pleased to report that yes, yes they can.
Of course, whether or not any individual is successful with any kind of advertising campaign depends on the strength of the offer, the receptiveness of the market, and the individual's skill in executing the campaign. So success is not guaranteed, by any means.
But, yes, it can happen.