The mysterious underworld unexpectedly receives an order from the Heavenly Way to select batch after batch of adventurers and send them into one trial scenario after another. But as the trial worlds grow increasingly difficult, the adventurers can no longer cope with the dangers they bring. How will they face the crises in these trial worlds? Find out in Infinite Underworld System!!!!!
This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.
