The book tells the story of the little pig Cotoco who was born and raised on the farm. But Cotoco had a problem - he didn't like the dirt of the pigsty. Unfortunately, he did not accept the idea of being born to live dirty in a pigsty. Thus, he discovered creative ways to get rid of this fate and give other directions to his life. With fun actions, he discovered ways to catch the farm owner's attention and live cleanly away from the pigsty. He was successful, thanks to his perseverance and determination not to accept with resignation the rules of the dirty society where he was born. Tonico, the son of the farm caretaker, saw in Cotoco an example of life to follow to map out his own destiny.