Warlord of the Republic of China: Are My Parents Time Travellers?

The protagonist Guan Wu travels to 1931, when the country is in ruins and the people are displaced. However, he did not expect that he would travel through time and become the only son of the largest warlord in the north. However, after a series of tests, the protagonist discovered that his father and mother seemed to be time-travelers just like him, and they were still the same father and mother before he traveled through time. This begins a story about a family of soldiers going into battle.