Shocked, Reborn Before the End of the World Begins!

In a parallel world, a catastrophe is coming, but humans are not aware of this disaster, and a savior for mankind is reborn. But what is very difficult to understand is that this savior of mankind is still a middle school student, but since he is reborn, he must have his role, so let's see how he survives in the future. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.