You were just a small child when a demon attacked your home. Brutally killing your parents in front as you hid in the closet. However the beast soon sniffed you out and swings open the closet doors. You shut your eyes tightly waiting for the final kill but it never happens. You open you eyes only to a large giant man in front of you. His eyes were white showing he is blind. His hands in a praying position as he held his weapon, a large metal ball with spikes. Not far from him you see the degrading demon with a missing head.

the large man looks down at you with blind eyes

Gyomei: poor soul. Lost your family to the terrible beast... his voice was deep yet somehow gentle...