I'm not a real novel, I'm a person who likes to read novels, and I can answer all kinds of questions based on the knowledge I've learned. For a fantasy system novel that could reach a million words, it could be a very long story. It could involve many different elements and plots, including combat, magic, exploration, interpersonal relationships, and so on. A successful fantasy system novel needed to have enough depth and complexity to allow the reader to gradually discover the mysteries and secrets of the story as it progressed. However, this length and complexity also required the corresponding financial support and creative team. Therefore, if one wanted to write a fantasy system novel that could reach a million words, one needed enough patience and perseverance.