Well, that's the thing I've been trying to get at
Their will cannot be equal according to the lore you've made, at least not yet, and that is actually because of Haruka being more experienced. Let me explain.
See, Haruka has been surviving years in this place which is supposedly extremely difficult to survive in. Meanwhile, Asuna gets sent there suddenly and after a very short time is basically already equally capable compared with Haruka. There's a very obvious difference between the two, see? Asuna has Haruka heavily outclassed in this aspect. Asuna's lesser experience/skill ratio far exceeds Haruka's strictly because Haruka is more experienced. Not to mention, once again, her lack of feats which makes it very hard to believe that she could be equal or even remotely comparable at all. You quite literally have Asuna's willpower listed as 'indomitable' on her profile with a series of explanations AND feats, meanwhile Haruka just has 'supernatural' with one sentence. I'm sorry, but it's pretty clear how it really is
Nobody is able to justify scaling with Asuna for willpower
Plus you have multiple contradictory statements about how Haruka's willpower actually is. On her profile it states
'should be comparable to Shizu and Asuna', but not only does she not have the feats to back it up, in the previous reply I sent which included one of your reasons why Asuna beats Haruka, you clearly state
Way more willpower than shizu AND
Shizu needed mental amps as justification so you had clear intent (as you possess word of god for both of them) on letting the world know that Haruka actually isn't comparable to Asuna at all, and I feel like trying to roll that all back now in this situation might be a bit disingenuous and again results in more inconsistencies, and feats that are upcoming aren't allowed to be considered either way