I'm Fighting the War on the Sandbox

Zhou Guanhuo received a sandbox from the future and found that a group of villains were having a heated game on the sandbox. Curious, he took a closer look, and after accidentally sneezing, he discovered that the villain shouting "Xinei" gradually gained the upper hand. Displeased, Zhou Guanhuo pinched the one who shouted the loudest to death. ———— 1940, Battle of Cangyunling. Li Yunlong bombarded the headquarters of the Bantian Regiment, but a strange wind forced the shells to miss. Just when Li Yunlong was desperate, the giant finger fell from the sky, Captain Bantian's body was not found, and Cangyun Ridge was victorious! ———— Zhou Guanhuo, who thought it would be a trivial matter, was surprised to find that he had a lot of knowledge about future technology in his mind. Room temperature superconductivity, quantum chips, artificial intelligence, controllable nuclear fusion... A teacher from a small technical school started to change the past and future of Daxia. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.