When the green light was on, I was scrolling through the short video and then opened my eyes to see a yellowed ceiling. The original owner's parents were underground workers and both sacrificed their lives. I was adopted and raised by the chief. After being seriously injured and transferred to the Hongxing Steel Rolling Plant, I was directly appointed as the head of the security section. I sat up on the edge of the bed and felt my muscles and bones first. I had to learn the rules of the factory from scratch.