Anti-Japanese War: Who Has Seen This Kind of Warlord?

[No heroine + no CP + no harem + cool writing + violent soldiers + hegemony + system] Zhang Nan inexplicably traveled through the parallel world of Aquamarine and became a soldier in the Northeastern Province of the Republic of China, just in time for the invasion of the evil neighbor next door in September. When there is no way to survive and no way to resist, obtain the fire inheritance of the lost higher civilization and start a legendary life. "There is a writer in our country who wrote a novel called "The Old Man and the Sea", which tells..." Zhang Nan: "What a coincidence, I also wrote a novel called "Laozi's Sea"."