Red Alert War Heirs

A modern salted fish who traveled to the war period originally thought that he would end the war of resistance and used his modern knowledge to develop society, but found that he was just a "temporary worker". With the return of the system mission, he discovered that he had really traveled through time. The reality was different from his own world, but the mission still existed? I don't know why, let's look at Red Alert: Successor of War This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.