Maybe a Fake Gintama - Chapter 13: All in All, Let’s Fill Up the Stomach First!

Violet skies, a world undergoing massive changes, a deficient moon, interlinking voids…
When the world experienced a cataclysmic event,the majority of living things ceased to exist. Although humanity survived by hiding in the last safe zones, humans had to face mutated dire beasts and colossal source beasts that could break through the space barrier and enter the earth at any second.
Luo Yunyang, a young man who grew up in those calamitous times, obtained an attribute regulator and set out to walk the path of supremacy!

- Description from novelupdates

Thirty-three classmates hold a reunion after graduating. Tensions soar and old friendships are tested, as a strange turn of events lead them to follow the path of the ancient gods.

Miss Su had lived a sheltered life focused on learning the three obediences and four virtues since she was young. Before she could marry, she was killed by the autumn rain. Reborn as a peasant girl in the 1980s, Su Danhong became a wife and also unexpectedly got a spiritual spring! She didn’t expect that her previous life’s embroidery skills were master level embroidery skills in this life? The master was not a master. Miss Su didn’t care. What she cared about was that she could use these skills to make money and not worry about clothes and food. Growing precious flowers and plants, embroidering beautiful mountains and rivers, and enjoying the simple life.This is the story of an ancient girl from a noble family who went through rebirth to the 1980s where she farmed and gave birth.