@Skellycrow__ For most times it self lol
Rest assured they where close as they where in a world they didn't have any grasp of and despite their differences in anyway they had eachother for it untile the end
@Skellycrow__ Someone to get the whole grasps of their surroundings mostly in a bettwer way to help others to get use to their surroundings as such and for others as well helped her in return thus.
I do think for windforce part she likes challenges a lot so does challenge anyone (or anything)
@Skellycrow__ I sorta went to my own interpretation for them since we don't have much, so yea, classic rivalry with others taking care of each other, and I see Illumina and Darkheart as sorta twins who would probably copy each other alot its can be sorta how siblings work different ways :]