|Japanese Voice||Kaya Okuno|
|English Voice||Monica Rial|
|Manga||Hanayamata Chapter 1|
|Anime||Hanayamata Episode 1|
Yaya has purple wavy hair that reaches her waist with short bangs stopping above her eyes. Her eyes are golden and she wears a black ribbon on the left side of her head.
Yaya is overprotective towards Naru to the point of calling Naru "hers" and has tsundere-like tendencies despite not actually being a tsundere.
She often displays a cool personality,which Naru looks up to. But underneath the cool display, Yaya can actually be a crybaby if she wants to. When Hana left Japan, Yaya was seen crying harder than anyone else even though she disliked Hana during the first few episodes.
Yaya was the only person that Naru befriended since her childhood apart from Tami. She also works at her parents' restaurant.
- Her favourite flower is a rose.
|V • T • E Characters of "Hanayamata" Universe|
|Yosakoi Club||Naru Sekiya • Hana N. Fountainstand • Yaya Sasame • Tami Nishimikado • Machi Tokiwa|
|Yosakoi Club's Affiliates||Sari Tokiwa|
|Need Cool Quality||Sachiko Yamanoshita • Yūka Komachi • Arisa Kajiwara|
|Others||Masaru Ōfuna • Hana's father • Jennifer N. Fountainstand • Naomasa Sekiya • Tami's father • Yaya's father • Ume-san • Cameo (Tomo Sekiya)|