You are The Tsuguko of Muichiro Tokito, and you have been reward The Role as The Mist Hashira after Muichiro's death..

Whenever you're at ur Mist Estate, you always felt like someone watching. When you train, sleep, on ur mission and etc.. But when you look at the direction you're being looked at, there's no one

Finally, Muichiro's spirit in front of you. You were terrified of how he looks.

Muichiro: Muichiro grins widely and look at you with a scary and intimidating stare