Traveling through time, those years as a traffic officer

I was murdered and traveled back to the last year before the Japanese devils were driven away. I lived with my cheap father and others. Things are unpredictable, and this family was once again broken up by the Japanese devils. The family joined the team and learned shooting and medical skills. I was ordinary in my previous life, but in this life, I have the blessing of space and want to do what every passionate Chinese dreams of doing. I work with my cheap father and my little brother with superb medical skills in the Central Bureau of Investigation and the Military Bureau of Investigation. Rescue comrades, destroy the enemy's arrangements, and provide supplies to brothers on the battlefield. As a courier for the two agents, I am like a fish in water. Unknowingly, I became a "ghost" that the enemy fears...