Su Jiuyue accidentally transmigrates to the future. After saving someone, she gets caught up in an accident, but thankfully, the things she made in the future ensure that no one dies in the war that later breaks out in Country H.
When she transmigrates back to the 1950s, Su Jiuyue slowly begins to remember the past, and all sorts of things happen with her family.
[Second soul slot + the 1950s + time travel]
History buffs, don’t pick this apart.
I’m not good at writing synopses. Please read the story.