Siheyuan: Returning from the Army, Signing in to Beat the Crowd

[Single female protagonist + sign-in system + career] Cao Yuan was born in a parallel world. In order to change his ordinary and ordinary destiny, he joined the army early and joined the army. However, during a battle, he was unfortunately injured by an enemy bomb and fell into a coma. After waking up, my body could no longer carry out a high-intensity military career. So, I chose to change my career. Returning to the courtyard where his parents moved, he discovered that the world he was in was actually the "Qinman Siheyuan", a world where all the evil people in the courtyard were. And at this moment, the belated golden finger - the sign-in system, arrived. From then on, Cao Yuan embarked on a road to success and success. And those who tried to take advantage of him, kidnap him morally, and plot against him were all dealt with by him. The introduction is incompetent, so move on to the main text.