After Farming in the Wasteland, I Walked Sideways in the Safe Zone

[Apocalyptic Wasteland + Farming + Upgrade Space + Grain Collection] Once Bai Xia, an agricultural student, traveled through the apocalyptic wasteland, he could only survive by scavenging. The sick sister, the dilapidated house, the last meal but not the next? Then save points to buy medicine and exchange materials for house repairs! Easily identify plants and upgrade space to farm and collect grain. Bai Xia, who had always felt that she didn't have enough food, thought hesitantly after her sister got better: Is she now free to have enough food and clothing? A senior executive in the security zone who received a large food exchange order: Boss! We will remember your contribution to the safe zone! People from the slums who were led by Bai Xia to plant: How big do you think Xiao Xia's granary is? (Waving hands) Countless, countless! Scavenger Teammate: Food? Just follow Bai Xia and do some mental arithmetic and I will lose. Bai Xia, who worked hard to survive by collecting grain, accidentally became a big owner of grain, and everyone was staring at him. No, this is too dangerous! It's better to use some billions of grains to strengthen your house.