He was once an elite special forces soldier. Due to a failed mission, the team was almost wiped out. He was forced to retire due to stigma and huge psychological trauma. After retiring, in order to save the life of his younger sister Ling Xue, who was suffering from a rare serious illness and needed exorbitant medical expenses, he had to go overseas and became a mercenary who licked blood at the edge of a knife, struggling on the line of life and death. During an extremely dangerous mission, he accidentally activated the "War Commander Auxiliary System" hidden in his body, gained preliminary battlefield analysis, resource optimization and primary unit training acceleration capabilities, and started a counterattack...
