Okay kiddo, let me explain to you what Nain Rouge is. Nain Rouge is a legend that originated in Detroit, which is a city in the state of Michigan. It is believed that Nain Rouge is a tiny red dwarf or a mischievous gnome that causes trouble and bad luck wherever it goes.
Many people say that Nain Rouge is a symbol of bad omen and warns people of the bad things that are going to happen in the future. Some people also believe that Nain Rouge represents anger and revenge for all the bad things that have happened in the past.
Every year in Detroit, people celebrate a festival called the "Marche du Nain Rouge," which means a procession of Nain Rouge. This festival is like a big party that is held to chase away bad luck and to protect the city from any evil spirits. During the festival, people dress up in costumes and march through the streets, shouting and chanting to drive away any bad energy.
So, in short, Nain Rouge is a little creature that is believed to bring bad luck and is celebrated every year in Detroit to keep bad energy away. It is like a fun tradition that people follow to protect their city and have a good time.