Souji Okita

Souji Okita is Sirzechs' Knight.

Appearance
Souji's appearence is that of a man in his late twenties. He wears the traditional Shisengumi uniform, which consists of a haori and hakama over a kimono, with a white cord called a tasuki crossed over the chest and tied in the back. The function of the tasuki is to prevent the sleeves of the kimono from interfering with moving the arms. The haori is colored light blue, one of Japan's traditional colors, and the sleeves were trimmed with "light mountain stripes".

Personality
Souji has shown himself to have a very laid back personality. He is even able to remain calm when Grayfia gets angry (while everyone else is terrified).

History
He was the captain of the first unit of the Shinsengumi, a special police force in Kyoto during the late shogunate period. He was one of the best swordsmen of the Shinsengumi, along with Hajime Saito and Shinpachi Nagakura. During one of the many rituals to avoid dying from tuberculosis, he met Sirzechs by accidentally summoning him. He was later revived as a Devil by Sirzechs Lucifer as his Knight some time after his death in the Boshin War, and taught Yuuto Kiba kenjutsu some time before the series began.

The Heroic Oppai Dragon
He appears in Volume 12, fighting the Jabberwocky created by Annihilation Maker. He was ordered by Grayfia to cut off the Jabberwocky's leg so that they cold send it to the sky to be destroyed by the returning Issei, who assumed the form of Super Gigantic Balance Breaker after merging with Great Red.

Powers & Abilities
A Knight that consumed 2 Knight Evil Pieces. He is a master swordsman and is considered to be one of the best swordsman in the Underworld, being capable of moving at god-like speeds, surpassing that of Yuuto's.

Due to the many rituals and such that he did in the past, his body became something like a nest of youkai and he can release them from his body to attack his opponents.

Trivia

 * Souji is the first historical character featured in the entire series (Members of the Khaos Brigade do not count, as they are descendants of legendary/mythological heroes).
 * Souji is the main reason of Rias' interest in Japan, as the weird knowledge of Samurai is also one of his naughty habits.