Zero and Lilith weren't idle either, Zero was busy silently infiltrating different planes, her expertise as an assassin was not useless as she made use of not only her vast knowledge of forms of assassination but also her adept use of various spatial dimensional laws to silently mark and infect dozens of planes with her mystery, silently infiltrating and corroding them much like she did during her previous plane travel, It was an eerie process, her touch akin to a slow corrosion and once enough parameters were met, part or the whole plane would be sacrificed and devoured by the vast sea of mystery that was her residence.