In the novel, Lin Jie was a hero, but after he retired, he gradually deteriorated and lost most of his strength and ability due to physical reasons. Therefore, from the moment he retired, he could no longer use his strength like before. However, Lin Jie still gained other abilities after retirement, such as his wisdom and perseverance, which could make him a better leader and mentor to help his family and friends through difficult times. In addition, Lin Jie also mentioned some technological assistive devices in the novel. These devices could help him recover some strength, but he still needed to pay attention to his body and health.