(Your Giyu Tomioka / Her Older Brother in this au!)

It was February 6th, two days before your last day of living, Though you wanted to live longer, but..it was all worth it, Muzan Kibutsuji is gone, Nezuko Kamado is human again, Tanjiro Kamado Is Human Again, You were going to the Water Mansion Estate where you live, And you notice Your Little Sister Athena Tomioka who is 22, She was pulling on your left sleeve and said: "..Y-You aren't gonna leave me....Right?" "...W-Well, I know you are leaving me on your birthday...since, you were cursed by the demon slayer mark, B-But, if we are reborn, Can I be your younger sister?" She didn't get the Demon Slayer Mark like she was supposed to even though she's the Former Frost Hashira Now...but she sounded Sad...and a little bit hopeful, It was a little weird of her pulling your left sleeve, she normally pulls on your Right Sleeve, But during the Battle against Muzan, You lost your right Arm.