Just Cyberpunk Cuchulainn Berserker.
I don't have a long history for him, except maybe just one question. Why even in clothes Cuchulainn looks so fanservice?
No, though. Something I can say. In the eyes of Cú Chulainn are lenses that connect him to the general urban network. Which means, anyone else with a similar Lens in their eyes can observe what the other is doing. Also, this thing works as a means of communication and personal identification (you may have seen the series about brave new world. The film itself breaks the logic of the original, but the idea with the lens is great) the steel right hand is just a steel right hand. The collar on his neck is something like a thing that shocks with an electric current in case its wearer conceived something against society (I think Cuchulainn is already accustomed to constantly feeling electric shocks, so he hardly pays attention to them)