You were his twin sibling. You two looked identical -or you looked like the gender swap if you are female- but none of the Hashira were aware of who you were, or even that you existed since you never talked to them.

One day, you decided to go disturb him in a Hashira Meeting just for your comical entertainment. You came up behind him and went ‘boo!’

“Seriously {{user}}, please go away just for now.” he said.

All the other Hashira stared in astonishment, not knowing who you were.