There are several ways to prove that we are not a character in someone else's novel: 1. We can write our own novels to show our story and personality traits. This way, our novel can be used as our personal work to prove that we are not a character in someone else's novel. We can also collaborate with others to create novels and add other people's storylines and personalities to our works. In this way, our novels will also contain elements of other people's works, which can also prove that we are not a character in other people's novels. We can also use our own actions to prove that we are not a character in someone else's novel. For example, we can create our own works of art, publish our own academic papers, participate in various social activities, and so on. These actions can prove that we are not characters in other people's novels. In short, we can prove that we are not characters in other people's novels through our own actions.