In the original story, when the Sound Hashira learned of the Flame Hashira Kyojuro's death, he had been away on a mission rather than at Demon Slayer Corps Headquarters.
But she had slept for nearly a month, so whether the Sound Hashira had returned by now was anyone's guess. If he wasn't home, she could only... think of another way to stall for time.
Either way, Chinatsu had no intention of going back so soon. It was a little unfair to Nezuko, but she would rather be fair to herself. Being treated like a doll by Nezuko was no laughing matter.
With those thoughts in mind, Chinatsu wandered around Demon Slayer Corps Headquarters-and promptly managed to get herself lost.
Only after finally running into a member of the Demon Slayer Corps did she manage, with some difficulty, to find the residence of the Sound Hashira, Tengen Uzui.
The Sound Hashira, Tengen Uzui.
He was a former ninja born into a ninja family. Most people believed that ninja had vanished after the Edo period, but Tengen Uzui's family was one of the very few ninja clans that had gone into hiding.
Tengen had undergone his family's cold-hearted training from childhood. Originally, he had been one of nine siblings, but in the end, only he and his younger brother had survived. Unwilling to become someone so cold, Tengen had chosen to leave his family.
By chance, Tengen had discovered the Demon Slayer Corps and later joined it alongside the three wives he had met during his time as a ninja. With his exceptional physical conditioning as a former ninja and his hard work, he had quickly distinguished himself and become the Sound Hashira.
Chinatsu did her best to recall what she knew about Tengen Uzui. As the leading Hashira in the original