This is a warning - stay away
At first I was kinda excited, since I do like the manga, and the pre-air's looking alright. I took a look at the G123 platform this is supposed to be on, and I think this might be the fastest I've lost interest in something in a long time.
I'll be blunt, there is absolutely zero/0/zilch/nada/ゼロ chance of this being good; that platform is literally all just shitty browser games a'la AFK Arena or Mafia Wars, with UI and mechanics a'la League of Angels, VIP levels and all other wonders of that crappy "genre" included. Do NOT expect any quality going into this.