I Am Willing to Use This Body to Bring Peace to the World

My name is Xiyue, and I was a firefighter in my previous life. After the sacrifice, I came to another world. The world is being eroded by digital, and 24 professions are one of the ways to fight it. After I came to this world, I had a sister. Maybe she didn't know that her brother was dead. In the confrontation between digital and association Who is the chess piece and who is the chess player? I don't know (Mysterious flow + sequence occupation + slow heat + city + science fiction suspense)