At first, when I started watching this, I thought it was going to be your typical romance-novel-esque, harem anime, and was expecting to watch maybe 2 episodes then leave.
I don't think I've watched an anime (excluding SAO) this fast (I watched all of SAO, including movies/ova's, in 2 days. Every season. Non-stop. I binged this too.)
The plot is not only intriguing in its own way, but unlike