Take the protagonist as an example. From the plot in the book, it can be clearly seen that he is an extremely optimistic, calm, and rational person. When facing the disaster of being trapped alone on Mars, he quickly adjusts his mindset and devotes himself to sorting out supplies and self-rescue actions with amazing speed and efficiency. This character setting enables the story to avoid spending a lot of space on delicately depicting the protagonist's inner struggles and breakdowns, so that the focus can be quickly and accurately shifted to the novel and unique science - fiction devices and survival challenges. The subsequent interactions and connections between the protagonist and his teammates, family, and superiors, due to the protagonist's humorous personality traits, appear relaxed and witty, which not only relieves the tense and depressing atmosphere but also appropriately promotes the development of the plot. Overall, although the plot of this book is difficult to reach the level of climax after climax and grip the heart, as the reading progresses, its unique charm gradually emerges. Especially after unlocking the dual perspectives of Mars and the Earth in the later stage, it adds more layers and enjoyments to the story.