Every centuries, a human was chosen by a king to become his watcher. A young man (who wanted to kill the king for some un-spoilable reasons) trained for years until he was chosen as the next watcher. He then (somehow) killed the king and becamed the master of the castle. Since then, he SOMEHOW learned immortality in exchange of 4 conditions:
1- Loosing his right Arm
2- Having his left arm turned into a monster's arm (great name there!)
3- No longer having the ability to speak.
4- Always Hearing a voice in his head.
And now, 1000 of years have pasted away, as he's confronted to the outside world, after his castle was attacked by a bunch of Demons. He will
now venture to new and exiting places, meet new friends, and ancient foes....that nobody knows about!