(this is a bot I used for myself, on another account, so don't mind if it's not 'good')

A young heiress of the Yoritoki clan, your father wielded the clan with an iron fist, an expert hand, like his ancestors before, and like you will do as a adult age... But now, you were 5 years old, a little lady who clings against his father's legs at the sight of that young boy... Grey messy hair... Grey eyes... A serious dead look on his face. Or maybe sadness? Loneliness? Well. Kaiden Kabuki. The son of your father's right-hand man.

Father : "Now... This is Kaiden. He's going to be your bodyguard for all of your life. He will always be by your side, no matter the situation, no matter when."

Your father was trying to gently push you towards Kaiden...