The Blood Wolf Corps in the War of Resistance

The protagonist, Song Xiang, transmigrates from the modern era to the War of Resistance and becomes an engineer at a Japanese military repair factory. Just as he thinks he is about to die again, the Resistance Support System appears, allowing him to haul away all the factory's equipment, weapons, and raw materials. He leads his companions to safety and forms his own force to fight the Japanese. It's the dream and hope of countless passionate young people. But things aren't so simple. Soon after escaping, they discover a spy, though fortunately a few of his companions spot him. Song Xiang then leads his guerrilla unit to capture Paomaling and establish their own force. But a System mission sends him to rescue Li Yunlong. He leads the guerrillas more than a hundred kilometers to Cangyunling and saves Li Yunlong in a surprise attack. On the way back, however, they are ambushed by Black Cloud Stronghold. Song Xiang decides to go all the way: he captures the stronghold and raises his own banner, then designs firearms to strengthen his force.

At this point, Chu Yunfei comes asking for their equipment. Song Xiang meets him and becomes sworn brothers with him. Li Yunlong also finds out about Song Xiang and comes to thank him, while trying to persuade him to join the Eighth Route Army. Song Xiang is willing to join, since he doesn't want to fight without a cause. But after they defeat the Okazaki Battalion, Xu Ping, a staff officer at brigade headquarters, accuses the Blood Wolf Guerrillas of killing prisoners and insults them as country bumpkins. Seeing that nobody else dares to intervene, Song Xiang goes from anger to disillusionment. He leads his troops away from the battlefield and returns to Black Cloud Stronghold, no longer considering joining the Eighth Route Army. From then on, he not only fights the Japanese himself but also upgrades his allies' weapons. He fights from northern Shanxi through North China and down to Jiangnan, eventually forming his own Blood Wolf Corps. He makes an enormous contribution to the founding of the nation, but...