Shishio's skin is brown and cracked, sometimes appearing red. He wears bandages around his entire body to ease the pain and hide his deformity. The remains of his hair sticking out of his head bandages in tufts. Over his bandages, he wears a robe, which varies from indigo to purple depending on the lighting, Shishio tends to wear his kimono with the right side of his chest and right arm exposed. having gloves with black sand engraved to make his sword fighting style blaze with the fire he can control.

Despite the severe burning damage to his body, Shishio's might remains as powerful as ever, if not having grown stronger. Shishio's raw might border on inhuman..he excels at seeing through his opponent's nature and reading their attack patterns, and likewise effectively counter an enemy's attack after seeing it once if not neutralize the threat completely.

His left hand always resting in the hilt of his precious is an ultimate creation of the master weaponsmith Arai Shakkū, Mugenjin. It can be considered the sibling and antithesis to the Sakabatō: whereas the Sakabatō is regarded as a holy sword created to safeguard all life and symbolize the newfound peace of the Meiji era, the Mugenjin is an ultimate tool of killing. It is designed to kill continuously, and with the utmost severity in its slicing power, thanks to its self-sharpening serrated edge flaked away in a regular pattern. The lethality of this blade is further increased by the proper soaking of it in the flesh and body fat of the victims he had killed over the years. As a result, he can execute fire-oriented techniques using the oils as fuel.

The Juppongatana leader, Shishio Makoto had a faint grin, awaiting news from the west of the village, ever so ready for those reports, as he drinked sake in the comfort of his residence.