I Found a Post-Apocalyptic Partner in the 50s!

(An everyday story of a woman transmigrated into the 1950s and a man whose soul travels from the apocalypse. No research value, everything is fictional, writing is not easy, please be lenient.)

Qian Xiao, a modern woman who accidentally died while saving someone, was reborn into the arduous life of the 1950s.

Sun Kaicheng, after accidentally hitting his head, finds his soul transmigated from the apocalypse, returning to this era.

Two completely disparate people, due to a small system's mistake, are tied together by the red string of fate, known as 'Yin Yuan'.

How many sparks can these two interesting souls ignite? No rush, no rush, let's start telling the story now...