It was the Prohibition era of the United States. According to the news, four young executives of the infamous mafia group CR:5 had been arrested. At the same time, the main character Giancarlo was enjoying his life to the fullest. Even though he was part of the same group, he had no reason to save them.

However, after learning that if he can help all four executives escape, he will have the greatest opportunity of his life to become a mafia boss. Will the outcome be good or bad? It all depends on Giancarlo's luck, also known as "LUCKY DOG".