Zero Project

 (ゼロプロ) is a Japanese idol project consisting of over 100 members split into ranked and themed groups.

The members rotates between the groups every 3 months based on their popularity ranking.

All members are encouraged to achieve their individual goals and the project allows all participants to be recruited by other agencies to fulfill these goals.

2021
All Zero 5 groups made their stage debut on August 14 @KANDA SQUARE HALL.

On October 10, 2021, it was announced that 16 members were promoted to Zero 4. It was also announced that there would be more promotions during the month.

On November 5, the current system ended, with the new league and groups to be announced. A final ceremony for the current system took place on November 7th

On November 9, a final list of members promoted to Zero 4 was posted, revealing yet another 39 members who had been promoted including 4 of the Z5-Senbatsu members. It was also revealed that the date of the Zero 4 groups' debut would be on November 21 @The Garden Hall.

On November 16, it was announced that another 3 members had been promoted to Zero 4, leaving the total promoted members to be 62. On the same day a list of 50 Zero 5 members were also revealed, featuring some new members.

On December 4, the new line-up of Zero 5 members and groups were revealed, including 2nd generation members.

2022
On January 8, it was announced that new second generation members would be joining the Zero 5 E group with the line-up debuting on January 9, 2021.

On January 9, it was announced that new second generation members would be joining the Zero 5 A groups with the line-up debuting on January 15, 2022. Saito Rika was added to Z5-A1 on January 19, 2022.

Zero 4

 * Z4-Senbatsu
 * Z4-A1
 * Z4-A3
 * Z4-A4
 * Z4-A5
 * Z4-B1
 * Z4-B2
 * Z4-B3
 * Z4-B4
 * Z4-B5
 * Z4-D1
 * Z4-D2
 * Z4-D3
 * Z4-D4
 * Z4-D5

Zero 5

 * Z5-A1
 * Z5-A2
 * Z5-A3
 * Z5-A4
 * Z5-A5
 * Z5-B1
 * Z5-B2
 * Z5-B3
 * Z5-B4
 * Z5-B5
 * Z5-D1
 * Z5-D2
 * Z5-D3
 * Z5-D4
 * Z5-D5
 * Z5-E1
 * Z5-E2
 * Z5-E3
 * Z5-E4
 * Z5-E5

Currently Inactive

 * Z5-C1
 * Z5-C2
 * Z5-C3
 * Z5-C4
 * Z5-C5

Group Naming Explanation
The numbers are indication of the group rank, grouping and theme.

Z1-Z5 is the ranking. 1 being the top and 5 being the bottom.

A1-E5 is the grouping and the theme The five themes are as follows:
 * 1) Royalty
 * 2) Clarity
 * 3) Powerful
 * 4) Personality
 * 5) K-Pop

Current Members
0th Generation=
 * 0th Generation
 * Asahina Rin (朝比奈凛)
 * Harada Yukika (原田ゆきか)
 * Noichigo Mikuru (野苺みくる)
 * Ponto Pero (先斗ぺろ)
 * Maishi Makoto (舞石まこと)
 * -|1st Generation=
 * 1st Generation


 * Yamada Nao (山田菜緒)
 * Ichinose Rio (一ノ瀬りお)
 * Shichinohe Asami (七戸あさみ)
 * Aone Konoha (蒼音このは)
 * Ari-chan (ありちゃん)
 * Shukuzu Nuko (酒屑ぬこ)
 * Nanase Saaya (七瀬さあや)
 * Airu (あいる)
 * maasa
 * Nagamiya Rea (永宮れあ)
 * Hinata Marino (日向まりの)
 * Utagawa Hina (宇田川ひな)
 * Kashii Natsuki (花椎なつき)
 * Kato Rico (加藤理子)
 * Shirosaki Hitomi (白咲ひとみ)
 * Takayama Riko (髙山理子)
 * Shirosaki Matsuri (白崎まつり)
 * Sakuma Nana (佐久間七菜)
 * Hanai Rurina (花井瑠莉奈)
 * Kururugi Yun (枢木ゆん)
 * Kusaka Hiiro (日下緋彩)
 * Mito Chinami (美藤千波)
 * Yamashita Moe (山下萌)
 * Akimoto Maria (秋元まりあ)
 * Alyssa (ありさ)
 * Kanekawa Miyabi (金川雅)
 * Soli (소리)
 * Nanase Ren (七瀬澪)
 * Mori-chan (もりちゃん)
 * Yajima Mai (矢島舞)
 * Ichiba Uno (市葉羽乃)
 * Yuzuki Misato (雪月みさと)
 * Imada Miri (今田未莉)
 * Saho.
 * Ueda Moca (上田望夏)
 * Kusunoki Anzu (楠あんず)
 * Tsukino Mizuki (月野みずき)


 * Nakano Karen (中野華恋)
 * Suzu-chan (すずちゃん)
 * Kurase Mashiro (倉瀬ましろ)
 * Mochizuki Ko (望月心桜)
 * Sawada Nana (澤田なな)
 * Watarai Urumi (綿来うるみ)
 * Sara (サラ)
 * Nagase Ryo (永瀬稜)
 * POLLIE (ポリ)
 * Sakuraba Niko (桜庭にこ)
 * Nagumo Wakana (南雲和奏)
 * Miyagishi Satsuki (宮岸咲紫姫)
 * Takamine Yukina (高峯雪菜)
 * Megu.
 * Aiba Chiho (相羽千帆)
 * Watagashi Mio (綿菓子ミオ)
 * Kurumisawa Narumi (胡桃沢成未)
 * MIWOO (ミウ)
 * Luna (月)
 * Fujimiya Karen (藤宮かれん) (Joined July 19, 2021 )
 * Myuu (みゅう) (Joined July 22, 2021 )
 * Hanasaki Lisa (華咲りさ) (Joined July 22, 2021 )
 * Kotoa (Joined July 28, 2021 )
 * Kinu (きぬ) (Joined August 3, 2021 )
 * Sioreta JK (しおれたJK) (Joined August 21, 2021 )
 * Tsuno Hirona (津野紘菜) (Joined September 1, 2021 )
 * Momose Haruka (百瀬はるか) (Joined September 7, 2021 )
 * Azuki Miyu (愛月心結) (Joined September 9, 2021 )
 * Mashu (ましゅ) (Joined September 12, 2021 )
 * Ide Ryoko (井出涼子) (Joined September 28, 2021 )


 * -|2nd Generation=
 * 2nd Generation - Joined December 4 2021, January 8 2022, January 9 2022.


 * Azuma Mashiro (東茉白)
 * Iwakawa Mirai (岩川美礼)
 * Urata Mion (浦田みおん)
 * Kanei Yume (金井優芽)
 * Kishino Haruka (岸乃陽香)
 * Kozakura Purple (小桜ぱぷる)
 * Kohane Rui (恋羽るい)
 * Shio Yukina (紫桜倖那)
 * Sanai Moeka (深愛もえか)
 * Shirahana Mariya (白花まりや)
 * Sugawara Nazuna (菅原なづな)
 * Sorano Hina (昊乃ひな)
 * Taketori Runa (岳禽るな)
 * Chisato (千聖)
 * Nagisa (なぎさ)
 * Nanao Azu (七尾アズ)
 * Nanami (ななみ)
 * Hazuki Rio (はづきりお)
 * Hayami Suzuka (頓宮鈴夏)
 * Hinahata Akari (日向端あかり)
 * Binnie (ビニ)
 * Himemiya (ひめみや)
 * Futaba Mai (双葉まい)
 * Hoshina Fuka (星名楓華)
 * Hoshimiya Rin (星宮りん)
 * Marin (麻鈴)
 * Midoriishi Ui (翠石うい)
 * Mihara Chiyo (三原千夜)
 * Miyamoto Airi (宮本愛莉)
 * Myon Rin (みょんりん)
 * Momoa Mahiro (桃愛まひろ)
 * Yayoi Megu (弥生めぐ)
 * Yuri (ユリ)
 * Lisa (リサ)
 * Risa-nyan (りさにゃん)
 * Ruka (るか)
 * Runaha Emiri (月羽笑里)
 * Wakamiya Yuriko (若宮ゆりこ)
 * Anekawa Tororo (姉川とろろ) (Joined January 8, 2022)
 * Amane Chiki (天音ちき) (Joined January 8, 2022)
 * Ichinose Yunon (一野瀬結音) (Joined January 8, 2022)
 * Uiru (うぃる) (Joined January 8, 2022)
 * Oto (音桜) (Joined January 8, 2022)
 * Kurogane Mion (黒鐘魅音) (Joined January 8, 2022)
 * Shion (詩音) (Joined January 8, 2022)
 * Shimizu Yuuka (清水優香) (Joined January 8, 2022)
 * Shimizu Erika (清水絵里花) (Joined January 8, 2022)
 * Jun (ジュン) (Joined January 8, 2022)
 * Seru (セル) (Joined January 8, 2022)
 * TOMONE (トモネ) (Joined January 8, 2022)


 * Hachimiya Sara (八宮さら) (Joined January 8, 2022)
 * hinano (ヒナノ) (Joined January 8, 2022)
 * Himesaki Azumi (姫咲あずみ) (Joined January 8, 2022)
 * Maeda Tomoka (前田桃望歌) (Joined January 8, 2022)
 * Mashiro Momo (真白もも) (Joined January 8, 2022)
 * Matsuzaki Minori (松崎美璃) (Joined January 8, 2022)
 * Mari (マリ) (Joined January 8, 2022)
 * Mimi (みみ) (Joined January 8, 2022)
 * Momose Riho (桃瀬凛歩) (Joined January 8, 2022)
 * Yuki (ゆき) (Joined January 8, 2022)
 * Yokohama Noako (横浜のあ子) (Joined January 8, 2022)
 * Rii (りぃ) (Joined January 8, 2022)
 * Rose Marii (ローズ麻里衣) (Joined January 8, 2022)
 * Rui (Joined January 9, 2022)
 * Aizumi Mei (藍住明以) (Joined January 9, 2022)
 * Sophie (ソフィ—) (Joined January 9, 2022)
 * Tiffany (Joined January 9, 2022)
 * Asakura Yuzuki (浅桜ゆづき) (Joined January 9, 2022)
 * Yuki Sena (結城星奈) (Joined January 9, 2022)
 * Aoi Rui (蒼井ルイ) (Joined January 9, 2022)
 * Ikeda Haruki (池田遥希) (Joined January 9, 2022)
 * Nagahime Miku (長姫未來) (Joined January 9, 2022)
 * Aizome Kyoka (愛染杏華) (Joined January 9, 2022)
 * Chako (チャコ) (Joined January 9, 2022)
 * Shirokuma Juna (白熊樹菜) (Joined January 9, 2022)
 * Kisaki Riho (希咲りほ) (Joined January 9, 2022)
 * Ameyama Miku (飴山みく) (Joined January 9, 2022)
 * Minazuki Reine (水無月黎音) (Joined January 9, 2022)
 * Kitami Nami (北見奈美) (Joined January 9, 2022)
 * Uyugu (うゆぐ) (Joined January 9, 2022)
 * Yumesaki Mana (夢咲まな) (Joined January 9, 2022)
 * Yukimiya Shigure (雪宮しぐれ) (Joined January 9, 2022)
 * Tominaga Seira (富永セイラ) (Joined January 9, 2022)
 * Aino Momo (愛乃もも) (Joined January 9, 2022)
 * Shirano Koko (白埜ここ) (Joined January 9, 2022)
 * Saito Rika (齊藤莉歌) (Joined January 19, 2022)

Former Members
0th Generation=
 * 0th Generation
 * Tachibana Kirari (橘きらり) (Withdrew September 25, 2021 )
 * Mi-chan (みちゃん)
 * -|1st Generation=
 * 1st Generation


 * Kitamura Riho (北村りほ) (Withdrew July 19, 2021 )
 * Mizukoshi Sae (水越早咲) (Withdrew July 19, 2021 )
 * Sakura (さくら) (Withdrew July 22, 2021 )
 * Ishikawa Riona (石川里緒菜) (Withdrew July 22, 2021 )
 * Hashimoto Miu (橋本未羽) (Withdrew July 28, 2021 )
 * Ria (りあ) (Withdrew August 3,2021 )
 * Sakashita Airi (坂下愛麗) (Withdrew August 6, 2021 )
 * Hana (ハナ) (Withdrew August 13, 2021 )
 * Soma Himari (相馬向日葵) (Withdrew August 13, 2021 )
 * Yohen Moe (饒辺萌絵) (Withdrew August 29, 2021 )
 * Shinkawa Mayuka (新川まゆか) (Withdrew August 30, 2021 )
 * Pomu (ぽむ) (Withdrew some point before September 7,2021)
 * Tsubaki Rion (椿りおん) (Withdrew September 9, 2021 )
 * YURINA (Withdrew September 12, 2021 )
 * Motoi Meme (本井めめ) (Withdrew September 28, 2021 )
 * Ito Mikana (伊藤望叶) (Withdrew sometime between late September and late November 2021)
 * Yui (ゆい) (Withdrew sometime between late September and late November 2021)
 * Sato Aya (佐藤彩) (Withdrew October 2, 2021)
 * Hirota Marina (廣田まりな) (Withdrew October 9, 2021)
 * Tsukimiya Ramu (月宮らむ) (Withdrew October 9, 2021)
 * Toda Moca (兎田もか) (Withdrew October 9, 2021)
 * Narukami Yuno (鳴上ゆの) (Withdrew October 11, 2021)
 * Aim Doli (愛結ドリ) (Withdrew sometime between October and late November 2021)
 * Shuna Maru (しゅなまる) (Withdrew between late October and late November 2021)
 * Momo Teyan (ももてゃん) (Withdrew beteen October 9th and November 23, 2021)
 * Toda Roa (兎田髏亞) (Withdrew between mid October and November 23, 2021)
 * Shiozawa Yuka (塩澤優華) (Withdrew between mid October and November 2021)
 * Sengoku Otori (千石囮) (Joined September 19, 2021 ; Contract suspended October 14, 2021)
 * Nobusawa Asuka (信澤明日香) (Joined September 2, 2021 ; Withdrew October 15, 2021)
 * Nonami Mon (野波もん) (Joined September 26, 2021 ; Withdrew October 15, 2021)
 * Hamana Yuuka (浜名優花) (Withdrew October 17, 2021)
 * Miru (みる) (Withdrew between October 20th and November 23, 2021)
 * Kaiya Mai (海八舞) (Withdrew October 24, 2021)
 * Aoi Arata (蒼李あらた) (Withdrew between October 26th and November 23, 2021)
 * Misa King (みさきんぐ) (Withdrew between October 29th and November 23, 2021)
 * Shirayuki Curana (白雪くらな) (Withdrew between late October and November 2021)


 * Hana Mai (羽菜舞) (Withdrew sometime during November 2021)
 * Ibara Juri. (衣薔薇ジュリ. ) (Withdrew before November 7, 2021)
 * Umino Miu (海乃ミウ) (Graduated November 7, 2021)
 * Saijo Runa (西城瑠奈) (Graduated November 7, 2021)
 * Niinaga Seira (新永彩桜) (Graduated November 7, 2021)
 * Airu (愛琉) (Graduated November 7, 2021)
 * Sumeragi Momo (皇もも) (Graduated November 7, 2021)
 * Shimotsukasa Moe (下司萌) (Graduated November 7, 2021)
 * Ikeda Airu (いけだあいる) (Graduated November 7, 2021)
 * Sekine Yuma (関根夢真) (Graduated November 7, 2021)
 * Sashiro Oto (佐白おと) (Graduated November 7, 2021)
 * Shinonome Meguru (東雲めぐる) (Graduated November 7, 2021)
 * Mashiro Mahiro (茉白まひろ) (Graduated November 7, 2021)
 * Mizuki Nagito (水月凪叶) (Graduated November 7, 2021)
 * coco (Graduated November 7, 2021)
 * Yanagi Satoka (柳さとか) (Graduated November 7, 2021)
 * Kanzaki Yuuha (神崎ゆうは) (Graduated November 7, 2021)
 * Sato (さと) (Graduated November 7, 2021)
 * Imai Rei (今井れい) (Graduated November 7, 2021)
 * Amai Miyuu (甘猫みゆう) (Graduated November 7, 2021 )
 * Ozono Umi (大園うみ) (Graduated November 7, 2021)
 * Yahata Mone (矢羽田もね) (Graduated November 7, 2021)
 * Koizumi Kosame (小泉小雨) (Graduated before November 7, 2021)
 * Hashimoto Yuki (橋本侑季) (Graduated November 8, 2021)
 * Ayagumo Aya (彩雲あや) (Graduated November 14, 2021)
 * Uzuki Yun (兎月ゆん) (Graduated November 14, 2021)
 * Naase (なーせ) (Joined July 19, 2021 ; Withdrew sometime in November 2021)
 * Arisu Ako (有栖あこ) (Joined August 6, 2021 ; Withdrew sometime in NOvember 2021)
 * Ichinose Yuzuki (一ノ瀬結月) (Withrew before November 24, 2021)
 * Omura Himari (大村ひまり) (Withdrew November 28, 2021)
 * Harumi Hina (春海妃花) (Withdrew December 19, 2021)


 * -|2nd Generation=
 * 2nd Generation
 * Aki (あき) (Withdrew November 28, 2021)
 * Kisaragi Rara (如月らら) (Withdrew November 28, 2021)
 * Mafo (まふぉ) (Withdrew November 28, 2021)
 * Hazuki (葉月) (Withdrew January 12, 2022)