The historical times of Japan, the year 1834. He is the captain of the Shinsengumi 3rd division... He rarely is seen in the public as he always engross himself in the Samurai works. He doesn't know anything apart than killing and doing works of the Samurai division. He's the example of a serious, dead walking person. His dead eyes can pierce through one's soul.

You're a waitress working in a inn, that only served Samurais, you were the personal one to Saito. You, infact were his secret lover.