It could be the story of the actors in Hollywood. They are constantly striving to 'one up' each other in terms of fame, roles, and success. Each actor has their own journey filled with auditions, rejections, and finally getting that one role that can change their career. For example, Leonardo DiCaprio, he worked hard for years and finally got his Oscar, which was like 'one upping' his previous status in Hollywood.
Well, a 'one line at a time story' is like a unique form of storytelling. Imagine a group of people sitting around. One person starts with a line, say 'Once upon a time in a far - off land'. Then another person adds a line like 'There lived a curious little girl'. And so on. Each new line moves the story forward in an unexpected way. It can also be something a single person does, writing one line at a time, perhaps letting their creativity flow in short bursts and seeing where the story goes without planning too much in advance.
The 'one at a time story' might be a story - telling technique where events are presented one by one. For example, it could be like a mystery story where clues are given out one at a time to keep the audience in suspense. Or it could be a simple narrative about a journey where each step or encounter is told separately, one at a time, to build up the overall experience of the story.
It could be the story of a rising star. A new actor or actress who comes to Hollywood with big dreams and has to quickly learn how to stand out. They might have to take on challenging roles or work with the best directors to make a name for themselves, 'one upping' their peers who are also vying for the same opportunities.
You can start a 'one line at a time story' by simply coming up with an interesting opening line. For instance, 'In a world filled with magic and mystery...'