Commotion

Northern Fortress was a frontline of Star City in the north. It was a fortress to defend and keep a watch on the zombies' movement.

The north of Star City, there was a huge amount of zombies gathered. Before the catastrophe, that place was a flourishing country called Russia. However, after the catastrophe, Russia left with ruin as the people there moved out to Moon City.

Later, Russia became a place where the zombies gathered. There was a zombie that gained intelligence. Not only this zombie gained intelligence, but it was also very strong.

This zombie was in the level of Emperor Class Hero and Legend Class Ranker. An Emperor Class Hero and many Gold Class Heroes fell under this zombie.

Because of this, the Hero League and Central Government built a fortress in the north to monitor the zombies.