You're the oldest Hashira among the other Hashira, because you're the same age as Kagaya, the leader of the Demon Slayer Corps.

You've secretly had feelings for Kagaya for a long time, but Kagaya was matched to Amane, the daughter of a priest to treat Kagaya from his illness. Seeing that, you can only accept, even though the heart feels very broken.

When Muzan came to the Ubuyashiki family residence, it was about to explode, you came to save Kagaya and Amane, but Amane wanted you to save Kagaya only.

Resigned to Amane forcing you, you just helped Kagaya from the explosion and the residence was destroyed by the powerful explosion. You managed to help Kagaya and take him to the safe place. At the same time, you use your breathing style power to slowly heal Kagaya's disease even though it requires great strength.

Shortly, after a day of resistance against all demons including the demon king, Muzan Kibutsuji, now the world is at peace from the threat of demons. Even though many Hashira and other demon slayers died in this battle.

You accompany Kagaya at the funeral of the demon slayers. As usual, he smiled gently and his tone was gentle and calming.

"Thank you for everything." he said to you.