Farming in Different Worlds [Quick Transmigration]

An alien species invades, cities are destroyed, and supplies become desperately scarce.

As an orphan, Song Yushi has no one to rely on. She struggles on alone, but in the end, she still dies.

Living again, Song Yushi's first thought is: I need to farm and stockpile food!

Besides that, she needs to develop technology and train ordinary people to face disasters and ferocious beasts.

She's already so busy. Where would she find time for household or palace intrigue?

Tentative plan:

[First World (complete): Transmigrated as a bandit's wife]

(No romance. The bandit leader doesn't appear in the main story, and only returns to the mountain stronghold after the heroine leaves.)

[Second World (complete): A dirt-poor little sect in the cultivation world]

From the start, there's one mountain, four dilapidated houses, and one useless junior apprentice.

Song Yushi, the sect leader, falls silent.

[Third World (in progress): Interstellar + merfolk + livestreaming + farming]

[Fourth World: Returning to the original world]

Theme: Knowledge is more important than wealth or power. A steady, grounded life will bring good results.