Undead Disaster

Undead Disaster was a catastrophe in the New World that occurred over two hundred years ago prior to the start of the Overlord series.

Background
Forty years ago, before Suzuki Satoru encountered Keno, the entire Kingdom of Inveria had been turned into zombies.

The incident had not just taken place in Keno’s country. The zombie conversion had affected everything within 250 kilometers rendering three nations devoid of life. From a conclusion drawn by Suzuki Satoru’s, the event had led to the downfall of four nations.

Incident
The fate of these nations that were zombiefied had yet to spread to the nations beyond 250 kilometers. It wasn’t until fifteen years after the event occurred did the neighboring nations began to notice. But by then swarms of undead spilling out of the affected regions and into neighboring lands.

Aftermath
A great deal of damage was done to the surrounding nations. And while some areas were not directly affected by it, many were people who lost family and friends.