I have to say what lured me to this series was the take on time travel. It is brilliant and original. Most time travel series involve sending people into the past. However, this one revolved around sending messages to the past. So it gives you a different perspective on time travel. Especially when you consider the idea of the butterfly effect.

That is really what gave this series its depth. The fact that the group could send a message into the past, and not really know what effects it could have. As demonstrated by what happened with Feryis-chan. It made it kind of interesting knowing that Okarin was the only one who knew time travel had happened. Which makes you wonder about time travel in general. I mean if we all lack the Reading Steiner. How exactly are we going to prove time travel exists? The series goes into pretty good depth with that as well.

I mean Suzuha came back from the past and was treated like a psychopath. Well that and a net troll, looking for her 5 minutes of fame. So if we are going back in time and the past is changing how exactly can anyone really know? This concept has a lot of potential.

All in all, I have to say this series definitely worth at least one watch. If anything to see the concept. While it is always hard to make such a broad concept into a concrete anime. It is a lot of fun to watch and to see how things will change when someone fucks with the past.