Dad's Special Forces in the War of Resistance

Li Ruochen, a 21st-century expert in weapons manufacturing, unexpectedly transmigrates into the body of Li Fuying’s son, a warlord of the Shanxi clique in 1932. After the Central Plains War, he enters the Whampoa Military Academy. Five years later, when he returns, he discovers that he has a daughter.

Using manufacturing technology seventy years ahead of its time, Li Ruochen produces large quantities of weapons. Whoever dares invade China, no matter how far away, must be killed.