The heroine is Ye Zimo. It's not yet clear whether she'll have a love interest. She isn't reborn, but she does have a System. This is a story set during the War of Resistance. The heroine starts out as a country girl who knows nothing about the world, then gradually comes to understand it and chooses her own path: defending her home and country, improving herself, and doing her part for the nation.
Note: This isn't a wish-fulfillment story, and the author's knowledge of history is limited. Please read with your brain half off, and go easy on me. Major historical events in the story will not be changed.