Build the Strongest Army in the Last Days

In the fifth year of surviving in the apocalypse, we were finally buried together on this continent. My favorite childhood sweetheart couldn't bear to see me humiliated and dragged his crippled body to block me. My brother, who was crazy about protecting my sister, fought to the death to clear a way for me, and everyone who loved me fell down one by one. Relive your life, seize opportunities, stock up on goods, change your physique, and build the strongest army. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.