This one is edgy not only in terms of feeling, but also in terms of character designs (each character is edgy in different way, though). This is also another anime this season which is technically a let's play, because most of the time is in-game, but people are not trapped there. Not sure I get the appeal of this.
In terms of story... It's kind of like "Final Fantasy XIV: Dad of Light", but way more sad and depressive. It also feels somewhat superficial, forced. I have mentioned "edgy" already, haven't I?