Huo Qihang has returned from studying in the United States, talented and full of promise. But when the Battle of Shanghai breaks out, he loses both his beloved parents overnight. Devastated by grief, he resolutely joins the battlefield against Japan, defending his country's dignity with his own flesh and blood. But on the battlefield, his opponent's every blow is deadly, and each clash brings them to the brink of disaster. Most shocking of all, this merciless enemy looks just like him: she is his twin sister! When the truth comes to light, can the siblings let go of their past grievances and join forces to fight the invaders? With suspense mounting and doubts clouding the truth, readers can hardly look away. Amid the smoke and flames of war, family bonds and national honor intertwine in a moving story. What will they choose? Join us as we uncover this little-known legend of resistance against Japan!