God of Summoning! When Mutation Descends Upon The Mortal World.

The apocalypse arrives, and the so-called monsters from the game break through the dimensional barrier to massacre indiscriminately, pushing human civilization on the Blue Star planet to the brink of annihilation. Just as the world collapses, time suddenly rewinds for “him,” back to the moment when the game first appeared. This time, he is determined to uncover the mastermind behind it all, protect his home, and prevent the same tragedy from happening again. And so, a revenge-driven game against time begins…