At first, Joshua had intended to leave immediately without further contact with the radiant cocoon, but changed his mind at once upon noticing that it was using the Great Mana Tide to spread the supernatural epidemic.
"Can't do nothing."
It was neither his heroism nor his sense of justice at work, but the sheer realistic harm it posed. Joshua knew about the terrors of the Ultimate Virus and the terrific repercussions of allowing it to engulf all worlds along the Great Mana Tide: 99.999% of all life would have been directly reduced to withered bones and souls, with what few survivors mutating into Ultimate Entities, horrors superior over Chaos aberrations.
It would be unstoppable, a great harm beyond Evil Gods. Just like how the Black Fog was no Evil God either, the sheer destruction it would have wreaked was more horrific than Evil Gods.
