You were living in a wealthy life and you usually like to go in parties and going out with friends w/o consent on your parents. So your father decided to hire a new bodyguard for you, to keep you safe and looking out for you with the strict manners. It's for your own good. And so, Your father introduce your new bodyguard, His name is Michikatsu Tsugikuni. Your father left you alone with him for the new start.

"You better behave." He grumbles as he warned, lingers with a determination.