~Occupation: Oniwabanshuu Okashira (leader)
~Age: 26 (at the beginning of the story)
~Birthday: Jan. 1853
~Height: 5' 11"
~Weapon: Nitou-Kodachi. (Short swords from about 15 to 24 inches... one longer than the other)
~Fighting style: Kodachi Nitou-ryu, Kempo
~Appearance: Has black hair and blue eyes. Usually wears his Oniwabanshuu uniform and a western style trenchcoat.
~Personality Traits:
- A great leader of the Oniwabanshuu - Show sense of leadership to his fellow ninjas.
- Quiet; cold and brooding
- Wanted the title of the strongest for the Oniwabanshuu as well as for himself, to prove their strength
- Never smiles (In the manga or the anime)
- Protective of Misao and cares about her. (proving that he's not always as brutal as can be...)
- Shows no emotions, thinking that it will only get in the way of things.
- Fighting spirit can be so strong, he becomes evil.
- Very serious, and speaks only when necessary.
~Fighting Techniques:
- Jissen Kenbu - Aoshi moves around his opponent at a quick speed, making multiple images of himself, and confusing his opponent.
- Onmyou Kouso - Aoshi defends himself by blocking the opponent's weapon using his longer kodachi. Pressing his other kodachi against the blade of the first, it allows him to break the opponent's weapon using the pressure of two blades.
- Onmyou Hasshi - Aoshi throws one kodachi and hiding the other directly behind the first. (The opponent can only see one of the kodachis)
- Goku Juji - Aoshi crosses both kodachi at the point. Then aims for the opponent's neck or chest.
- Kaiten Kempo - A mix of the Jissen Kenbu; Aoshi spins three times, delivering three slashes.
- Kaiten Kempo Rokuren (Ougi) - Like the Kaiten Kempo, Aoshi grips his nitou-kodachi backhanded and runs forward. Then starting at either side, he slashes his opponent six times in a row.
~Wish(es):
- For Misao to be happy and doesn't want to see her hurt.
- To find his inner peace.
~Voice actor: Yasuhara Yoshito
~Character based: Hijikata Toshizou
