Fade - One Reason - Deadman Wonderland OP [Lyrics On-Screen]HD
Disclaimer: No copyright infringed intented. I do not own anything in the video, everything belongs to their respective owners. This is simply made for the entertainment of fans like myself.
Song: One Reason
Anime: Deadman Wonderland
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.
(Summary from lovemyanime.net)
I hope you enjoy!