Ganta Igarashi has been convicted of a crime that he hasn't committed, and sent to a new, privately owned and operated prison, where the inmates are the main attraction in a modern day twist to the gladiatorial coliseums of ancient times. Throw in a healthy dose of weird little girl, some new-found super powers, and a little conspiracy theory, and you have Deadman Wonderland.
A moving story, full of action and criticism of society! To explain the extraordinary system of Deadman Wonderland you absolutely need to watch the Anime.
If you're searching for a happy school life Anime about little girls singing songs you should close this tab NOW. Deadman Wonderland has so much more to offer. It's not only about fighting, blood and action, actually this prison represents feelings in our society like friendship, love, hate, fear and hope. I do not speak for only myself by saying that this deeply felt Anime is something we can learn from.
Apart from fantastic art skills I can recommend the soundtrack (such as the opening song) of this anime. It is one of the best I've ever listened to and I always loved to sing along with the opening song (one reason was it's name) in every single episode.
So I'm pretty sure you guys know what to do know - watch Deadman Wonderland as fast as you can, cause you'd miss one of the best Anime existing!
One sad thing is, that the Anime ends when the Manga goes further so if you're (like surely everyone) not satisfied with the end of the Anime you can read the Manga! There you can see the whole capacity of beautiful Manga drawing art!