War of Resistance: Tell Old Li My Schemes Are a Little Too Ruthless

Mentor Fan Cheng wakes up to find himself in the world of Drawing Sword, a trainee staff officer under Li Yunlong who has just been stripped of his post. The bloody battle at Cangyun Ridge is underway, and with the elite Sakamoto Regiment bearing down on them, Li Yunlong is preparing to throw the entire regiment into a bayonet charge. Fan Cheng stops him in his tracks and activates the [Ruthless Strategist System]!