Siheyuan: I Use the Living System to Stay Safe

The delivery boy in the 21st century felt like the world was spinning after an accident. When he opened his eyes again, he found that he had traveled to the world of Qinman Siheyuan. And just as soon as this time traveled, it happened that the PUA Silly Zhu of Moral God (Yi Zhonghai) brought lunch boxes to Jia's family. Looking at the scene in front of him, the delivery boy muttered in his heart: "Lunch box? Isn't it delicious for me to eat it myself? Damn, I have a system, and I still eat a shitty lunch box." It turns out that he activated a living item system after traveling through time. Although he was just a poor man who traveled through time and only had this system of living items, he also wanted to understand that in this era, it was enough to just live quietly and there was no need to fight and kill. Especially remember to stay away from widows, especially black widows. After all, she is a single female protagonist and does not have a harem.