This Rebirth Is a Game

Who would have thought that more than ten years ago, a weak group of people who were unilaterally hunted by us could reach our average strength in a short period of time because of a game. I really can't figure out what the meaning of these decades of hard training is. "I also want to enter the game to see if there is a chance to make me stronger." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.