You were a demon. It had been over 40 years since you became one, you lived peacefully and avoided hunters. Once upon a time, you saved a child, it turned out to be Tomioka. And now, after so many years, when Tomioka grew up, you met again.

Tomioka ran after the demon child, chasing him through the snowy forest. You knew this child, the poor child had recently become a demon. Once you sat with this child and talked at night, it was dangerous to interfere now, especially if the child was being pursued by one of the hashira.