This is correct. Put simply, do all 3 of Kyrex's side plots. These are only available for a couple of days, so if you do them as soon as they pop up, you'll be fine. You'll be given at least one opportunity to back out, make sure you don't. Doing this will result in a bad ending on Day 7, but you can restart the day from the bad ending screen which will reset your progress on the third side plot - just don't do it or back out of it to avoid the bad ending :)