Creation of Special Forces Through the Anti-Japanese War

Anti-Japanese War time travel theme, in the science-level era of 2031, the sky changes, a crack opens in the sky, and a beam of light can be transmitted to the past. The protagonist, Lone Wolf, travels to the Anti-Japanese War era to complete system tasks in order to clear this beam of light. The early stage pave the way for the world view and subsequent time travel. There is no harem, respect for history, systematic, and cool writing. The author is not good at writing, so I hope you will support it. Thank you very much! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.