Benimaru Shinmon

is a member of the 7th Special Fire Brigade.

Appearance
Seiya is a young man with neck-long, wavy, dark-coloured hair, brushed to the left side of his face, dark eyes, with one eye having a circular pupil with a white outline and the other eye — a white cross-like pupil, making his eyes reminiscent to the game of tic-tac-toe, and a gloomy facial expression. Seiya's outfit consists of a light t-shirt with a dark-coloured vest over it, Special Fire Brigade uniform trousers, dark boots, dark-coloured, fingerless gloves and a dark jumper, which is wrapped around his waist.

VS. 1st Special Fire Brigade arc
Seiya and the 7th Special Fire Brigade confront a giant Flame Human in the streets of Tokyo, alonsgide the 1st, 2nd and 5th Special Fire Brigades.