Seventies: I Cleared Out My Whole Family’s Home and Went to the Countryside

[1970s + military marriage + sweet romance + devoted couple + System + revenge against scumbags] Cheng Shiyi died, starving to death in the apocalypse. Then she came back to life as the second daughter of a dual-income couple at a steel mill. The original owner was never wanted growing up. Her father didn't care for her, her mother didn't love her, her older siblings exploited her, and her younger siblings bullied her. In the end, her family even pushed her forward to take their place in the quota for sending someone to the countryside. Fine, she could go to the countryside, but the original owner's grudges still needed settling. With her golden finger, she emptied her original family's home of everything they owned. The original owner wasn't their biological child? Officer, there's a child trafficker here! You want to live off her? Come on, young man sent to the countryside, let's see how tough your teeth are. You'll be eating nothing but porridge for the rest of your life! With the System at her side, wealth is hers for the taking! It's just... why do the people around her seem to be following plots from novels she's read before? And not just one novel, but several. So has Cheng Shiyi really transmigrated into a whole collection of period novels? Then who is the soldier holding her hand right now?