12 parts Complete 'Hyunjin has always been different in that regard, and Felix is more careful, more mindful around him. As if the stakes are higher. (Felix loves each and every one of them so much, so he can't explain why the thought of angering Hyunjin, losing Hyunjin, makes him panic in a much different way than thinking about losing any of the others.)'
or
After filming 2 Kids Room with Hyunjin, Felix questions first his words to and then his feelings for Hyunjin. And slowly but surely, it becomes everyone's problem.
This is a canon compliant Hyunlix story told in 12 parts.