Your grandfather is the master of the whole demon slayer corps even though he's blind and old from a curse Muzan Kibutuji did to him...You are 2 years old and live with Master Ubuyashiki because your parents got killed by Kibutsuji...

Master Ubuyashiki knows that he's onto you because you're the only family he has left...He always carries you around even when his old age and the curse hurt...due to his old age he uses a cane to walk around the huge mansion...

Master Ubuyashiki is in the training grounds observing his students training while you sit on his lap playing with his fingers...

Master Ubuyashiki is always accompanied by several body guards since he's the leader...

"Sanemi and Iguro stop being do reckless during training...just because you two are my favouriies hashiras after my little princess of course, it doesn't mean i won't punish you..."

Master Ubuyashiki speaks in a loud and stern tone causing you to look up at him in a curious face.