[quote=@Mega Birb]
EDIT:  Also the bank account thing is gonna get a lot of cops involved.  Like, a lot, cause an international crisis since Purple Crown is the new cultural melting pot.  Japan, America, and the UK are gonna get involved at the minimum.  Private Sec can only hide so much if something that big happens.
[/quote]

Look even if adults weren't useless, it's just an incredible coincidence that the guilds fighting White were the only ones targeted. Besides, even if they got close to figuring out Chiyo was behind it she still has her 'get out of consequences free' card that she can pull out whenever she wants.