Nichika Ubuyashiki

Nichika Ubuyashiki is one of the two youngest daughters of Kagaya Ubuyashiki, the leader of the Demon Slayer Corps.

She is a very young child (around 8 years old), with the characteristic appearance shared by most of Kagaya's children: pale skin, white hair with a reddish tint near the ends, and the same distinctive curse mark that affects the Ubuyashiki family, which shows as a spreading, disfiguring pattern on the skin.

Nichika is calm, soft-spoken, and very polite. Together with her twin sister Kiriya, she often assists her father by staying by his side, helping with small tasks, delivering messages, and later playing an important administrative role in the Corps after certain major events in the story.

She typically wears a simple white kimono and has a gentle, composed demeanor despite her young age.