Cool scene, great AR-driven idea, and excellent actor/actress.
Sadly other than these there is no logic behind the storyline. If you think deeper, nothing is really explained.. every explanation is vague. And honestly, who would really play this AR game.. limited resources, boring single-path upgrades.. The best way to watch this is to not think much..
True advice:
If you want to find good stories, skip it. Otherwise, try to enjoy the great episodes 1-14 ish. If you drop the last couple episodes, it remains a not bad drama, and you won't be disappointed that much.