Siheyuan: My Childhood Friend Is Tian Zao

My name is Lu Ming. I transmigrated to early 1949. I was a soldier discharged from the army due to an injury. I thought I'd spend the rest of my life coasting along in my reassigned job. But by a stroke of luck, I got bound to the 【Family System】. Since the System has arrived, of course I can't just coast through life anymore. But can someone tell me why my childhood sweetheart is named Tian Zao? And why the place I live is called No. 95 Nanluoguxiang?