Title says all; God from OPM verse binds both worlds into one. In a epic war to make everything go back to normal, God announces a war between the most powerful organizations from both world. Whoever win will restore reality, but everyone in the looser team will die.
-Battle happens al laround the world.
-Every heroes and hunter from each organization.
-All S, A,B and C class.
-All hunters allowed (incluiding Illumi and Hisoka).
-The zodiacs are allowed.
-Members of the spiders are allowed.