I don't get small blinds line at all and really don't expect this to be KK or AA.
Even so, we can't expect opp to show up with something bad given the image and reads and flow of session. If it's been threebet every other hand/fourbet war than I'd look this up really light, maybe any pair 9's or better.

Here I'm betting opp has AK 85% of the time so we should definetely fold without AA, KK, or AK.