If it's a story about a 'lucky one', there might be a situation where the main character is facing difficulties or challenges at the beginning. Then, through a stroke of luck, they find a solution. This could involve getting a new job opportunity out of the blue, or finding a lost item that has great value. Another key element could be the positive change that occurs in the character's life as a result of their lucky break. Their relationships might improve, or they might gain new skills or knowledge.
I don't know the exact story. But common key elements in such a story could be an unexpected event that changes the protagonist's life for the better. For example, a sudden inheritance or a chance encounter with a helpful person.