I Returned Reborn and Revealed the Coming Apocalypse

I transmigrated back to a year ago, only to find myself becoming humanity's savior?

In the interrogation room, I, a middle school student, have a big shot pointing a gun at me?

Humanity's fate is in my hands, and a national-level leader has entrusted me with a great responsibility. Young man, how will you face the apocalypse?

Step one: Mobilize the entire nation and prepare for war, despite the world's ridicule!

Step two: Build a super underground city project and shock the whole world!

Step three: Wait for the apocalypse to arrive!

A year later, the apocalypse comes right on schedule!