FTM Fanmade series

Main character(s): Dark markery, Quartz Marker, Foliage marker --- In the series, All popular easy markers (Purple,red,blue,yellow,green,orange) Turn into robots (murder drones) and attack the world, to own it. However, Three girls try to escape as everyone is dead. The city is abandoned, so, it's like a 6v3. The robots trap Quartz into a puzzle maze, and another two girls find her suddenly. Will everything come back to normal? --- series: Abandoned AU/series