Synopsis

What will you do if the world suddenly gets turned into a game? In a situation where Levels and special powers exist, there are even monsters and mutated animals to fight. Most gamers would probably rejoice, but what about normal people?

A world where mutated monsters took over the vast majority of lands.

A mysterious system made by the combined consciousness of nanomachines.

An all-powerful entity deeming Earth as Open for invasions!

Chaos and death. Defending from invasions or counter-invading the other side... How about you? In this situation, what would you do?