Heaven and Earth in the Domain of Sin

The outbreak of the Third World War...

After the war, to ease the radiation-ravaged environment on Earth, the world's leaders had no choice but to work together. In 2050, humanity fulfilled its dream of migrating to Mars. For the first time, humanity proudly announced to our ancestors, who were rodents six million years ago: The beautiful sea of stars you once gazed up at with boundless longing, we, your descendants, have finally taken the first step toward conquering!

But Mars was home to vast numbers of mutated insectoids, so many people were unwilling to serve as cannon fodder. After much deliberation, however, the leaders proposed a host of excellent terms, and recruits signed up in an endless stream.

Of course, Zhang Chengfeng had never signed up for any round of the military recruitment and migration program. In fact, every record about him was blank until he appeared in Mars's Fourth District. And so, a frenzied world of supertechnology that overturned humanity's understanding was revealed, just the tip of the iceberg...

Even if we set out for this battle and never return, so what?