Talk:Rank Creation/@comment-24053170-20170330200404

Not sure if they totally count as a user, but Charger-Girls from Juden-Chan grant normal humans various ranks/grades of levels of negativity that they are experiencing, with higher levels making it more difficult for them to treat.

Though its never actually explained how this system of ranking was set up or by which person, all we do know is they managed to do it with virtually every human on the planet (though the series mostly focuses on a few small cities).