Iori Saeki (佐伯 伊織 ) also known by the stage name NU-KO, is a Japanese singer and voice actress affiliated with Swallow. Beginning her activities as a dōjin (self-published) musician in 2012, she began voice acting activities in 2018. She is known for her roles as King Halo in Uma Musume Pretty Derby, Maiko Kurashiki in Hachigatsu no Cinderella Nine, and Kimie "Tanpopo" Kamata in Oresuki.

KNOWN FOR

Akebi's Sailor Uniform
2022
Blue Orchestra
2025
Aharen-san wa Hakarenai
2025
The Quintessential Quintuplets
2021
Demon Slayer: Kimetsu no Yaiba
2023
Tokyo Mew Mew New
2022
SSSS.DYNAZENON
2021
How a Realist Hero Rebuilt the Kingdom
2021
Saving 80,000 Gold in Another World for My Retirement
2023
The Iceblade Sorcerer Shall Rule the World
2023
Umayuru
2022
Journal with Witch
2026

FILMOGRAPHY

All
Movies
TV
Acting
56
2026
Noble Reincarnation: Born Blessed, So I'll Obtain Ultimate Power
as Shirley Grantz (voice)
2026
Journal with Witch
as Motchi (voice)
2026
An Observation Log of My Fiancée Who Calls Herself a Villainess
as Silica Lunea (voice)
2025
100 METERS
as Kawano (voice)
2025
The Shy Hero and the Assassin Princesses
as Ciel (voice)
2025
Aharen-san wa Hakarenai
as Henzan-sensei (voice)
2025
Aharen-san wa Hakarenai
as Nukko the Tanuki (voice)
2025
A Mangaka's Weirdly Wonderful Workplace
as Shiori Asakura (voice)
2025
Harmony of Mille-Feuille
as Sayaka Iguchi (voice)
2025
Blue Orchestra
as Rika Togane (voice)
2025
Umayuru: Pretty Gray
as King Halo (voice)
2024
Umamusume: Pretty Derby - Road to the Top Movie
as King Halo (voice)
2024
Uma Musume Pretty Derby 5th EVENT ARENA TOUR "GO BEYOND" - YELL - & - NEW GATE -
as King Halo
2024
Umamusume: Pretty Derby - Beginning of a New Era
as King Halo (voice)
2024
Pon no Michi
as Pai Kawahigashi (voice)
2024
Vampire Dormitory
as Woman C (voice)
2023
Uma Musume Pretty Derby 5th EVENT ARENA TOUR GO BEYOND -WISH- & -GAZE-
as King Halo
2023
The Quintessential Quintuplets∽
as Tsubaki (voice)
2023
SSSS.DYNAZENON Grand Episode
as Kano Minami (voice)
2023
Demon Slayer: Kimetsu no Yaiba
as (voice)
2023
The Tale of Outcasts
as Vivian (voice)
2023
The Dreaming Boy Is a Realist
as Mina Ichinose (voice)
2023
The Iceblade Sorcerer Shall Rule the World
as Amelia Rose (voice)
2023
Saving 80,000 Gold in Another World for My Retirement
as Ilse (voice)
2022
Uma Musume Pretty Derby 4th EVENT "SPECIAL DREAMERS!!"
as King Halo
2022
Mirage Queen Prefers Circus
as Ai Iwasaki (voice)
2022
The Quintessential Quintuplets Movie
as Tsubaki (voice)
2022
The Executioner and Her Way of Life
as Menou (voice)
2022
Akebi's Sailor Uniform
as Mika (voice)
2022
Tokyo Mew Mew New
as Moe Yanagida (voice)
2022
Umayuru
as King Halo (voice)
2021
Revue Starlight: The Movie
as (voice)
2021
ラピスリライツ・スターズ 1st Orchestra「LIGHT UP the MAGIC」
2021
How a Realist Hero Rebuilt the Kingdom
as Julia (voice)
2021
Muv-Luv Alternative
as Kei Ayamine (voice)
2021
The Quintessential Quintuplets
as Tsubaki (voice)
2021
SSSS.DYNAZENON
as College student β (voice)
2021
SSSS.DYNAZENON
as Kano Minami (voice)
2020
Revue Starlight 3rd StarLive "Starry Diamond"
as Yuyuko Tanaka
2020
Revue Starlight 3rd StarLive "Starry Diamond" - Documentary
as Self
2020
Revue Starlight: Rondo Rondo Rondo
as Class B Costumer (voice)
2020
Nekopara
as Vanilla (voice)
2020
Rebirth
as Kozue Kasugai (voice)
2020
Adachi and Shimamura
as Yashiro Chikama (voice)
2020
Lapis Re:LiGHTs
as Ashley (voice)
2020
Umayon
as King Halo (voice)
2019
Weathering with You
as (voice)
2019
ORESUKI Are you the only one who loves me?
as Kimie "Tampopo" Kamata (voice)
2019
Shoujo☆Conte All Starlight
as Yuyuko Tanaka
2019
Cinderella Nine
as Maiko Kurashiki (voice)
2018
Revue Starlight
as Hinano Kyomoto (voice)
2018
Revue Starlight
as Child (voice)
2018
Revue Starlight
as Class B Costumer (voice)
2018
Revue Starlight
as Marina Banbaen (voice)
2018
Revue Starlight
as Classmate (voice)
Maiden Blood
as Eva (Voice)