Also, if Juri's Feng Shui Engine Alpha isn't prohibited here, her power and speed would increase, causing her to be more likely to land successful hits and inflict Stun, or to land Focus Attack on him.
It is allowed, since in this key she bears the Alpha, a prototype that doesn't make her 8-B, but just boosts all her stats considerably (although without any multiplier) but for a much more limited time. Still, a temporary boost in AP, Dura and Speed remains a handy advantage.
About Ryutarou, of whom I know absolutely nothing, how much of the notions listed in his intelligence section apply to this key? And how does physical combat work in his verse? To be more clear, and before giving some info on Juri's prowess, she and the people of her verse fight in the classic, almost-anime like superhuman ways, with crazy jumps and acrobatics, inhuman attacks and combos, super fast pace and such. If Ryutarou is used to a more realistic or real world-life type of combat, then he could find himself unprepared and unused to face an opponent who moves, attacks and does things he wouldn't even imagine.
About Juri, I don't have much more to add to what her intelligence section already says about her. She uses this superhuman form of Taekwondo and remained a top-notch fighter even after losing the tool that made her super strong, and most of her techniques don't even require the origina engine to be performed.
SF6 doesn't add too much and just solidifies that she can fight evenly with all those people listed in her intelligence section, even without having or using her stat booster.
About her advantages, her already superior AP is bolstered by some of her attacks being powered by ki, then she can boost some special moves, but most of all is the aforementioned engine. All of these things coulds supposedly level the ground against Ryutaro's damage reduction.
How does Ryutaro's vibrations work? Do they travel in form of waves or smth? The only scan provided on his file doesn't really say much. Juri has decent experience against projectile users, but the waves might be kinda difficult to notice or deal with if they are transparent or difficult to see, although Juri might just realize that he isn't flailing his arms from a distance for nothing, and that's a common way to shoot projectiles in her verse.
Juri does have her own projectiles to counter and reply, but in this key her main one needs first to be charged (Fuharenkyaku), while the second one (
Fuha Enzan) can be spammed but it doesn't go that far. The last one, the
Sakkai Fuhazan, is quite strong and goes far, but can't be spammed due to the energy it requires.
A good tool in Juri's arsenal is her absorption (
Feng Shui Engine Beta in her NA&T), it's basically a swirling aura around her that passively, but temporarily, saps the energy of the opponent and restores Juri's ki (not health) and by extension the battery of the Feng Shui Engine, potentially allowing her to re-use it after it runs out of charge. That would also wear Ryutaro down and lessen the effectiveness of his stamina.
It is also particularly useful if Juri manages to pressure him enough in CQC and keep draining him aisde from dealing normal damage.
Ryutaro's muscle-headedness mentioned in his weakness section could also be his downfall. Juri doesn't give a damn about having a fair fight, and while she enjoys to manhandle her opponents, she becomes quite serious if they piss her off (such as when Guile
landed a combo on her). Juri might also capitalize on Ryutaro's refusal to dodge or strategize thanks to her (apparently) superior agility and (possibly) alien fighting style.