In the future world, there will be constant battles, cities full of wastelands, abnormal weather conditions, and frequent natural disasters.
People at the bottom who were living in poverty were displaced.
They can only build simple houses in the ruins to avoid the war and survive hard.
The living environment is getting worse...
When the heroine travels through the space carrying supplies, her life is always better than others.
PS. The heroine
Intention: Constantly strive for self-improvement and strive to survive