In Another World: Can You Become Stronger by Dreaming?

When the blood-red sky enveloped the world, deadly dust storms, permanently frozen glaciers, and deformed monsters tore civilization apart. Everyone has become a selfish person struggling to survive in the ruins, just hoping to survive one more day in the shadow of the shelter. ………… If not, what are you doing for me? Fang Cheng stared blankly at the iron-grey sky. Looking at the desolate scene around him, Fang Cheng felt numb... I'm not dreaming... —— "Why don't you ever smile?" "Don't laugh." "Why??" "Because smiling brings misfortune."