First off, just for clarity. You say she looks like a teen but there's a huge difference between 13 and 19, so maybe add some detail like "high-school age" or something of that sort to give a
better picture. Or in much creepier words... is she underage ( ͡° ͜ʖ ͡°)

Your personality section is long-winded however it provides multiple scenarios, overall excellent and I'm sure you'll find your own ways to improve it in time.

"Everything. She is an omnipotent, invincible demon from another dimension. She does, however, have a mortal body, so you can kill that (although she will survive.)."
*sigh*
Look, I know there's things about being limited by a body but like, come on. This isn't some dick contest for who has the strongest character.

We'll skip the next two sections for now because those take effort to read.
You can't just say she'll win 97% of the time. The characters of the wRHG are vastly different in their take on CQC. Like, Genesis (not a self plug) has probably some of the strongest CQC given his nigh invulnerability against most conventional opponents and his incredible strength, regardless of how slowly he punches. But, for that reason other opponents could easily abuse his weaknesses with things like cutting into his joints to stop him from continuing fighting. Someone who carries blades with themselves all the times and is clever has a much higher percentage chance of winning than someone who is say, a boxer. It's not some static percentage or even something that can be quantified. Different opponents have different advantages even in a strictly CQC environment.

Your story is painful. the idea of a character who is omniscient and tells people they can help but instead of magicking it they instead have someone suffer through it because the journey is important, that's great. It's the 2.2 billion year old omnipotent part I don't like. Gods shouldn't be in the wRHG because there's no reason story-wise that someone on the brink of death wouldn't just go god mode and annihilate everyone who opposes them. It's great you have a deus ex machina, but how do we write our characters killing GOD? It just feels sloppy and as though you're either trying to maintain lore or making this whole deal a dick contest when the real dick measurement is found in the battle zone. If you are just keeping her godlike for lore's sake, adjust your character to better fit in the wRHG.

Back up to what she will do.

I don't like the comparison's to an anime that not everyone has watched or will watch, however I suppose nothing is stopping someone from just googling demonstrations of these martial arts.
Wait a second. I didn't notice this before... one of your abilities is deadly finger pistols. You fucking god. 10/10 best wRHG ever. Fuck the incredible designs of those like Handyman, this is perfection.
"Eye of Sauron"
Fucking dammit. You were so close to having the perfect character and then you blatantly broke copyright laws.
Also, your eye of terror is an "I win" button. Or an "Eye win" button, either one. Change it to something fair or remove it. Again, any time you say they won't use something, means they'll use it in dire scenarios like when they're losing a fight. Which either means they always win, or the opponent will almost win to just inevitably lose because there is no reason for Alex to not use her "I win" button at the brink of her mortal body's death.

I'm tired and your weaknesses section is a wall of text. Use what wisdom I have imparted to you for now. Until then, welcome.

0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001% of the time. Also she is not meant to be a main protagonist. She is just kinda there because reasons. And the helping powerful wRHG's improve theirs and others lives.

SHE ISN'T MEANT TO BE A MARY SUE. SHE JUST HELPS PEOPLE. WITHOUT USING HER MARY SUENESS. IS THAT REALLY HARD TO UNDERSTAND. EVEN NEAR PHYSICAL DEATH (btw the immortality (where she is invisible), no one else had problems with other people with that. So why do people hate that on my char.) SHE WON'T USE IT.

1) Dante learns of Alex's existence.
2) Dante approaches Alex, and finds her annoying. You said it yourself, she's "asinine and overzealous."
3) Dante tries conversing with Alex, perhaps regarding her music taste. It is a short conversation.
4) Alex reveals she knows everything about Dante's past and could likely fix his problems, but won't.
5) Dante calls Alex out on her BS, and maybe throws a few punches.
6) Alex knew Dante was going to try and punch her this whole time, and avoids every single hit.
7) "Electro-Light (NCS)- Symbolism" begins to play.
8) Dante is severely annoyed, and continues throwing punches.
9) Alex is completely unaffected by each and every one of Dante's attacks. Even the one punch Alex lets Dante get.
10) Eventually the first song ends, and Alex tells Dante to start talking again. He does not listen.
11) Being omniscient, this is no surprise to Alex. It is, however, really annoying- because she hates waiting.
12) "The Fat Rat - Unity" begins to play.
13) Dante is slowly losing his mind.
14) Alex is slowly succumbing to boredom as she waits impatiently for him to speak.
15) Another 4 minutes pass, and "Monody" by The Fat Rat and Laura Brehm begins to play.
16) At 3 minutes, 17 seconds, Dante reluctantly admits to liking Laura Brehm- especially the song she did with the Eden Project.
17) Alex immediately pauses the song and huggles Dante, because they totally agree on something and she's known this all along.
18) Alex asks Dante about Serif.
19) Dante asks Alex what about about Serif she is referring to specifically
20) Dante admits to his role in the unreleased adult film entitled "Snare the Beast."
21) Alex squees happily and flies off to go see Serif, eagerly awaiting her Lord and Savior Serif Winters to finally notice and "snare" her as well.
22) Dante follows her, recognizing that this is a powerful adversary.
23) Dante is forced to listen to the Will & Tim Remix of OMFG's "Hello" the entire way to Serif's.
24) Alex's plans for Serif begin to unfold. Serif may not love her yet... but he will.
25) Dante just stands there awkwardly I guess.
26) Alex eventually decides her date with Serif is over, and looks to Dante for the emotional support she is clearly destined to receive.
27) Dante just kinda says some stuff I guess.
28) Alex thanks Dante for putting up with her I guess.
29) Dante just nods I guess.
30) Dante wakes up the next morning and dismisses it all as some sort of dream.

1) I'd be stuck with you. If we were to write a story like that, it sticks. If we were to set up a plotline, it would have to be resolved if I want to continue writing the character in the way that I am, or the way that most of us do. I could always throw the story aside and pretend it never happened, but then what was the point of doing it? Also- my clan would be stuck with it, Azure and his clan would probably be indirectly stuck with it, and it would be all my fault for ever considering doing this in the slightest, even if it was all just to mess with Crank some.

2) One of these plotlines that would probably end up being set up in a story like the one above would be your character's apparent "relationship" with another writer's character; Serif Winters. If Crank isn't cool with that, I'm not about to try and make that a part of my storyline. He's usually more tolerable of this sort of thing than most, but you may want to be abit more careful with this sort of thing- especially if you’ve never talked with him before. It’s okay to write your own fanfiction and have your own characters with their own… interests… but if you bring that character into the wRHG system (as opposed to keeping them to yourself or posting them elsewhere) you are opening yourself to a challenge, you are opening yourself to collaboration, and you’re bringing other people into the mix.

3) The character I’d be stuck with if we did a story will live on even after my character will have died, entwining you with his legacy, as well as Serif's. No pressure.

4) I as a writer cannot think of a sentient character who would not be annoyed by your character on some level. Clearly this is intended, and there are plenty of characters out there that are entirely worse than yours on entirely different levels, but understand that this may be yet another reason why a writer would not want to pit their character against yours. It is humiliating for every character but Alex, and because of your character being what it is, there’s no getting rid of it. There’s hardly any sort of changing it. It’s just accepting the character as an annoyance, and that’s annoying to do.

5) Your character could kill my own (and most others') instantaneously. What if your character finds my character annoying? What then?