I don't have NOTHING to point out as a fail of this kdrama. It just brings all I need, all I wanted to say to people about the internet world, the luxurious celebrities around the world, the hateful communities. All this has been shown, perfectly. The OST, the scenes, the acting, the storyline.
It was sensational, everything extremely well done.
It was the best kdrama this year (of the ones I've seen)
I guess the moral lesson of this story is something humanity will never learn, but people like me who identify with Sei Ari (or those who understand what this "fiction" wants to show), we can live in peace away from it.

I was obsessed with this story, now I miss it lol
But I'm very satisfied with how it ended, and most importantly: with what this story showed people, I hope they can understand and learn from this """fictional""" story.