Three Years Later, I Became the Savior of the Human Race?

720 Years ago, in the 0th year of martial arts, people awakened their supernatural powers and could summon extremely powerful troops to fight. Just as people were in joy, they did not know that danger was coming quietly. In the 1000th year of martial arts, thousands of races invaded, and no human race survived. At this time, a young man from Blue Star who was moving bricks was accidentally struck by lightning and traveled through time inexplicably. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.