One Step Forward Is Forbidden Ground

[No harem, no invincibility, no System, no mindless plot, and no wish fulfillment. Enter at your own risk.]

That day, two halves of the world overlapped.

That day, half of humanity died.

And that day, he saw a whole new world: Earth was flat, and people crawled forward like dogs.

Tear away the veil of mystery, and the unknown is the greatest terror of all!