I wonder this every time this topic comes up. I swear every ‘underrated gem’ article I read lists a bunch of shows that are actually pretty highly rated. And even if the word ‘underrated’ is used but what is really meant is ‘underappreciated’ or ‘not often discussed/recommended’, that still doesn’t always apply because I swear all the ones I ever see on those lists seem quite popular and are recommended everywhere I go. I still haven’t figured it out.
The original poster never specified that they were only looking for Kdramas, so I think it’s okay for it not to be in the Kdrama category. But it’s also reasonable to expect that a lot of the recommendations will be Kdramas, given that they make up so much of Viki’s content.