The Good: Interesting concept. Great character design. The Bad: Mediocre story-telling. Boring plot. Conclusion: This anime has an interesting pokemon-like concept, where certain individuals are able to summon demons via their cell phones to fight for them. It starts out strong; but the plot just gets more and more boring after episode 4. The characters are generic. I found it hard to care about them. Unless you're a fan of the video game, I recommend passing on this one.