On July 7, 2016, half of the human population was annihilated because of the Dark Tower. Cayden Campbell, a twenty-one-year-old college student, was instantly pulled into a world where life is a gamble of luck and death is inevitable. He tasted despair, loss and was forced to kill. He watched the death of comrades and loved ones. Unable to face the heavy loss, he took a gamble and challenged the Extreme Level of the Dark Tower's trial. Out of pure luck, he received the ability that can let him return to where it all started.

"I will start over... this time I will not let you die in front of me again. Please wait for me."