Got it, tell me if I should tweak anything, then.
Mitsumine Sakuya-sama is a young man dedicated to his clan and his vassals and is a fair and compassionate leader, a trait that would hardly be believed by neutral or hostile individuals as the young heir can be quite cunning and sometimes downright vicious in his dealing with strangers. Quite possessive of his clan, the boy have grown to believe that it was his destiny to lead the Mitsumine clan from it's minor place in court to the prominence it deserved. Tall and lithely muscled, his fighting skill is more apparent to the clever and subtle ninja than the honorable and mighty samurai, his silken clothes hiding small knives and vials of poisons and his long hair tied by sharpened needles with hollow tips. His face blankly smiling at most time, it is his eyes that are the mirror of his moods, becoming both a fond dove gray or hard and cruel granite.
Having studied the human body, poisons and politics intensely, he is most at home at court, antidotes tied on the underside of his long sleeves and an honeyed tongue hiding a sharp mind, he was brought up believing that wars were to be fought by vassals and planned by the Head of the clan. Incredibly fond of his fiancee, he is a proper and honorable young man whenever she is within sight or earshot, believing that women should be guarded from the unpleasantness of the world. Finally, at the start of every season, he make his way to the clan's main shrine to pray for the safety and prosperity of his clan, offered various fruits and flowers found in his uncle's estate.