I put your stats through the combat engine I built to just see how Krys does in a couple of scenarios. Obviously, you've got a bunch of other Techniques to pull together but just some initial impressions.
I would be a little worried about her health and very worried about risk of burnout because her energy score is really not high. If you don't amend her stats; in an actual play scenario, you would want to keep her close to a suitably defensive healer type player who could refresh her energy periodically.
If she goes into burnout, her attack power drops to literally zero. That said, even in burnout, she's still able to hit reaction checks from most mobs and just about on a mid boss-type build I put together, and even sans her Techniques, she has 3 which is a lot. Against a stronger enemy, she instantly dies in burnout because they are fast enough to overcome her massive SKI cleanly, the damage behind it is likely to be a lot more than her 40 HP.
You're playing quite high risk strategy with the character haha. It will be intensely annoying for her opponents but if she gets mobbed for a few rounds without assistance or is in a length battle, she's going to run into very real danger.
So, overall, rather nasty so far, not broken. As GM, I'm still more concerned for the player experience than I am for integrity of the game.
EDIT: Had a comment about your ENR levels, but I had accidentally broken a formula in the spreadsheet that meant your +10 wasn't properly accounted for. Fixed the sheet and have no further comments.