Chains is actually a creature of demonic origin who recently went through a form of demonic puberty, hinting that for his race he is quite young, who has a fascination for action movie culture and old oriental martial arts films. Known for his extreme resilience, his superhuman strength was gifted to him by going through a coming of age event called the Coronation, and was further advanced by adapting to the powers of one Locke Keyes. He is rather incredibly awkward due to his size, which is something he's not yet quite used to. Having been taken care of for a short time by a gunsmith and a watcher, and having been taught English and human culture through action movies, he has a fondness for guns, and has limited, though handy knowledge on how to put together firearms. In fact, he was once rather well known for carrying an oversized pistol called the Peaceweaver, a gun that was once an Artifact from his home dimension. The Artifact was lost to him during another event called the Binding, him wielding it for so long caused it to bless him with even more power, and is the reason he is able to keep up with more powerful and mature demons. His immense size causes him to have to be very careful with the world around him, and he weighs a little too much that he's not very fast at all.
The dimension that Chains comes from is a violent place, where females are apparently the dominant gender and most males are slaves to the women there. What makes this race even odder is that the males of the race are the ones who carry the child, which suggests that Chains might even be female, though such claims he meets usually with violence.