I Can Save Files After Being Reborn in the Apocalypse

Ruidong, one of the top ten strongest men in Tiandu who is famous for his "super speed", was stabbed in the back by his beloved. He was reborn a week before the outbreak of the apocalypse. He obtained a "meta-system" that could save and read files. Let's see how he kills his enemies and dominates the apocalypse in this life. This is a team game, not an individual war. This is the end of the world when we need to support each other and witness the times of humanity. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.