Iori Saeki

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Iori Saeki

Iori Saeki

Artist Information


Iori Saeki was originally a doujin vocalist who debuted as NU-KO. She was one of the winner vocalists of the Anata mo★pop'n vocalist! contest from pop'n music 20 fantasia, along with 秋成 (who provided vocals for Intersection) and mami (who provided vocals for 情操ディストピア); she provided vocals for 恋愛観測 in that game. Since then, Iori has been commissioned for several BEMANI songs, mostly in the pop'n music series.

Iori Saeki is currently a voice actress belonging to swallow, PONY CANYON's voice actor office. Since then, she has deleted her old NU-KO named twitter account and started a new one under her real name. She is also currently the voice of Ren Akizuki in the BandMeshi♪ media mix project.

Iori is a special representative player in the BEMANI PRO LEAGUE ZERO event, as part of TEAM Ryu☆ directed by Ryutaro Nakahara.


  • Iori has also sung songs in KONAMI's arcade game Otoca♥d'or (オトカ♥ドール). Its website can be found here.
    • She is also the voice of Nyandra in that game, her first work as a commercial voice actress (at that time, she hadn't joined swallow).
  • Outside of BEMANI, Iori has provided vocals for various doujin songs, often with DJ Command, DJ Genki, Harunaba, and Shingo as the composer/arranger.
  • According to Iori, the NU-KO alias comes from her preference for cats ("nuko" (ぬこ) is a Japanese slang for cat), when she set up her player name for the jubeat series [1].


  • NU-KO
  • ぬこねこさん
  • ねこまんまチーム! (member of, with wac)
  • Neko M@mma Team (member of, with m@sumi)
  • pop'n fellows (member of, with Akinari and mami)
  • メリー・バッド・メルヘン (member of, as 秋月れん / 赤ずきん)
  • 草津グリーン
  • 2021真夏のSingers (member of)


Song Artist Game Genre Lyrics Vocals
crew -Ryu☆ mix- beatnation Records feat.NU-KO beatmania IIDX 24 SINOBUZ EURODANCE -
ちらちら・はらはら NU-KO beatmania IIDX 24 SINOBUZ ACEDIA -
No Day But Today! NU-KO & yunocy beatmania IIDX 29 CastHour J-POP -
雨のちパノラマセカイ BEMANI Sound Team "劇団レコード" feat.NU-KO beatmania IIDX 30 RESIDENT SUNNY SKY -
winkle 2 winkle Ryu☆ ft.NU-KO beatmania IIDX 31 EPOLIS EURODANCE SPEED -
アイドル Covered by BEMANI Sound Team "HuΣeR × wac" feat. 佐伯伊織 beatmania IIDX 31 EPOLIS IIDX EDITION -
硝子玉のゆくえ BEMANI Sound Team "Akhuta Works" feat. NU-KO GITADORA HIGH-VOLTAGE - -
Healing Tree NU-KO jubeat plus - -
もっと私を好きになって! NU-KO jubeat plus - -
恋愛観測 NU-KO pop'n music 20 fantasia HAPPY LOVEGAZER -
カタテ読書 はるなば feat.NU-KO pop'n music Sunny Park GIRLS ROMANCE POP -
ポチコの幸せな日常 NU-KO pop'n music Sunny Park PUPCORE -
朱と碧のランページ NU-KO pop'n music ラピストリア ANIMA SONG -
僕の気持ちを描く Mr.T feat.NU-KO pop'n music éclale - -
恋歌疾風!かるたクイーンいろは ねこまんまチーム! pop'n music éclale - -
オトカドール ~このゆびとまれ~ NU-KO pop'n music éclale - -
BARRIER NU-KO pop'n music うさぎと猫と少年の夢 - -
No NAME Colors pop'n fellows pop'n music うさぎと猫と少年の夢 - -
Sing a Song Sign HuΣeR feat.NU-KO pop'n music うさぎと猫と少年の夢 - -
黒い月の遊戯 NU-KO pop'n music うさぎと猫と少年の夢 - -
進め!女の子のマーチ NU-KO pop'n music うさぎと猫と少年の夢 - -
Welcome to pop'n fantasy red glasses & BlackY feat.pop'n fellows pop'n music peace - -
ポチコの幸せな日常 (狂犬U`x´UばうわうHARDCORE Remix) NU-KO remixed by RoughSketch pop'n music peace - -
黒き螺旋のクレイドル NU-KO pop'n music 解明リドルズ - -
LIMIT TOPPA REVOLUTION BEMANI Sound Team "PON" feat.NU-KO pop'n music UniLab ハピコアMAX -
Lovin' You NU-KO pop'n music UniLab -
My Precious One NU-KO REFLEC BEAT plus - -
マイ♪ドリームステージ NU-KO REFLEC BEAT plus - -
neko fun jitter Neko M@mma Team ノスタルジア - -
波と凪の挟間で BEMANI Sound Team "Akhuta Works" feat.NU-KO ノスタルジア Op.3 - -
おーまい!らぶりー!すうぃーてぃ!だーりん! BEMANI Sound Team "PON" feat.NU-KO (いちかのBEMANI投票選抜戦2019) LOVELY YOUTH -
Red Cape Theorem メリー・バッド・メルヘン (バンめし♪) - -
恋愛観測 -2021真夏のエンディング ver.- 2021真夏のSingers (BEMANI 2021真夏の歌合戦5番勝負) - -
スーパー戦湯ババンバーン すわひでお,秋成,かぼちゃ,藍月なくる,NU-KO by BEMANI Sound Team "八戸亀生羅" (BEMANI 2021真夏の歌合戦5番勝負) オンセン♨ヒーロー -
世界の果てに約束の凱歌を Zutt feat.NU-KO (The 10th KONAMI Arcade Championship) - -



  • THE BEST OF NU-KO EUROBEAT (2017, as Eurobeat Union)
  • THE BEST OF NU-KO EUROBEAT 2 (2021, as Eurobeat Union)
  • Time to 10th (2022)