The world is like a prison. Is Yang Jian alive?

* * Life is like a prison. It is not necessarily Yang who is alive. In the ending of the novel A Prison on Earth, the last chapter roughly depicts the world after Yang Jian's death, including his first seven teammates. In this world, only ghosts with Yang's memory exist. Therefore, there are many interpretations of the description of the ending of the novel, depending on the reader's understanding of the life and death of the characters and the plot in the novel.