Synopsis:
A young elite from the twenty-first century accidentally transmigrates, only to wake up as the legendary hero Yan Shuangying in the 1940s! Before he can adapt to this war-torn era, he's struck by terrible news: he has only twenty-four hours left to live.
At the brink of despair, a mysterious "Save the Nation System" suddenly activates. It grants him invincible power and superhuman speed, but also shackles him to a limited lifespan: only by completing a series of dangerous missions from the System can he earn precious time to live. Executing traitors who sell out their country for personal gain, infiltrating the perilous mountain-city prison to rescue his comrades, posing as a double agent to deceive enemy spies and steal top-secret intelligence... Every mission is a near-fatal trial.
Amid gunfire and tangled conspiracies, this "new" Yan Shuangying, armed with a modern mindset and unmatched skills, is forced to race against time. He repeatedly skirts the edge of death, gradually moving from fighting just to survive to understanding the greater good and his duty to his country. Through one thrilling adventure after another, he not only adds to his lifespan but also tempers his resolve, growing into an unsung hero worthy of the era and carving a path to the light through the darkness.
