Lord of Summons! Sudden Mutation

Read manhua Lord of Summons! Sudden Mutation / Lord of Summoning! When Anomalies Descend Upon The Human World ; 召唤之主！当异变降临人间 ; Lord of Summoning When the World Changes ; God of Summoning! When Mutation Descends Upon The Mortal World.
The apocalypse came. Monsters inside the game broke through the dimensional barrier and started a massacre, driving human civilization on the Blue Planet to the verge of destruction. At the last moment of collapse, his time was suddenly rewound back to the moment the game first appeared. Now he is dedicated to finding out the one behind this, protecting his home and preventing the tragedy from happening again. Thus, a game of revenge begins, racing against time…