This is my first review so just remember that as you read this
This anime started fairly slow with the main character Tooru living in a futuristic city . Gradually the story becomes more involved with fighting the other world with identical looking characters (few differences and personalities slightly different) . Characters are sometimes introduced but they die too early on to really get to know them or they just don't bother showing you who half of these characters are just that they are either or side imo. This really bothers me but 12 episodes wouldn't allow that i'm sure. The whole time logic and THE END stuff is sometimes really hard to follow and the ending never really truly wrapped up the whole story. It was a fairly happy ending but not many definitive explanations (which is a con to me). Overall it was a good show if your into the video game, the theme of parallel worlds and time and saving the world, but as myself, I wouldn't be someone that goes around bragging or recommending this anime it was alright and a good time waster sci fi thriller.