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 August 19, the first selection member was revealed to be Noichigo Mikuru.

On August 21, the second selection member was revealed to be Ponto Pero.

On August 25, the third selection member was revealed to be Yajima Mai and the fourth selection member was revealed to be Saijo Runa.

On August 29, the fifth and last selection member was revealed to be Asahina Rin.

On October 10, 2021, it was announced that 16 members were promoted to Zero 4, in addition to the 5 selection members who were already promoted. 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.

On November 9, a final list of members promoted to Zero 4 was posted, revealing yet another 39 members who had been promoted. Saijo Runa who had previously been a selection member, didn't appear on the list and was therefore not promoted. 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. It was also apparent that Saijo Runa, would continue in the Zero 5 league despite being one of the first selection members.

Zero 4

 * Z4-Senbatsu
 * Z4-A1
 * Z4-A2
 * 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 (currently inactive)

 * Z5-A1
 * Z5-A2
 * Z5-A3
 * Z5-A4
 * Z5-A5
 * Z5-B1
 * Z5-B2
 * Z5-B3
 * Z5-B4
 * Z5-B5
 * Z5-C1
 * Z5-C2
 * Z5-C3
 * Z5-C4
 * Z5-C5
 * Z5-D1
 * Z5-D2
 * Z5-D3
 * Z5-D4
 * Z5-D5
 * Z5-E1
 * Z5-E2
 * Z5-E3
 * Z5-E4
 * Z5-E5

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)
 * Mi-chan (みちゃん)
 * Ponto Pero (先斗ぺろ)
 * Maishi Makoto (舞石まこと)
 * -|1st Generation=
 * 1st Generation


 * Aoi Arata (蒼李あらた)
 * Sato Aya (佐藤彩)
 * Yamada Nao (山田菜緒)
 * Narukami Yuno (鳴上ゆの)
 * Misa King (みさきんぐ)
 * Ichinose Rio (一ノ瀬りお)
 * Shichinohe Asami (七七戸あさみ)
 * Toda Roa (兎田髏亞)
 * Hirota Marina (廣田まりな)
 * 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)
 * Tsukimiya Ramu (月宮らむ)
 * Toda Moca (兎田もか)
 * Hana Mai (羽菜舞)
 * 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)
 * Ito Mikana (伊藤望叶)
 * Shirosaki Matsuri (白崎まつり)
 * Nana Cherry (ななチェリ)
 * Hanai Rurina (花井瑠莉奈)
 * Kusaka Hiiro (日下緋彩)
 * Mito Chinami (美藤千波)
 * Miru (みる)
 * Momo Teyan (ももてゃん)
 * 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)
 * Amai Miyuu (甘猫みゆう)
 * Mori-chan (もりちゃん)
 * Yajima Mai (矢島舞)
 * Yui (ゆい)
 * Ichiba Uno (市葉羽乃)
 * Hashimoto Yuki (橋本侑季)
 * Mochizuki Yuna (望月優奈)
 * Aim Doli (愛結ドリ)
 * Ibara Juri. (衣薔薇ジュリ. )
 * Umino Miu (海乃ミウ)
 * Saijo Runa (西城瑠奈)
 * Niinaga Seira (新永彩桜)
 * Ayagumo Aya (彩雲あや)
 * Uzuki Yun (兎月ゆん)
 * Sumeragi Momo (皇もも)
 * Yuzuki Misato (雪月みさと)
 * Imada Miri (今田未莉)
 * Saho.
 * Sekine Yuma (関根夢真)
 * 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)
 * Fukuzawa Suzuka (福沢涼栞)
 * Kurase Mashiro (倉瀬ましろ)
 * Sashiro Oto (佐白おと)
 * Shinonome Meguru (東雲めぐる)
 * Harumi Hina (春海妃花)
 * Mochizuki Ko (望月心桜)
 * Airu (愛琉)
 * Omura Himari (大村ひまり)
 * Sawada Nana (澤田なな)
 * Shimotsukasa Moe (下司萌)
 * Watarai Urumi (綿来うるみ)
 * Ikeda Airu (いけだあいる)
 * Shuna Maru (しゅなまる)
 * Mashiro Mahiro (茉白まひろ)
 * Mizuki Nagito (水月凪叶)
 * coco
 * Sara (サラ)
 * Nagase Ryo (永瀬稜)
 * POLLIE (ポリ)
 * Yanagi Satoka (柳さとか)
 * Kanzaki Yuuha (神崎ゆうは)
 * Sakuraba Niko (桜庭にこ)
 * Sato (さと)
 * Shiozawa Yuka (塩澤優華)
 * Imai Rei (今井れい)
 * Ozono Umi (大園うみ)
 * Hamana Yuuka (浜名優花)
 * Nagumo Wakana (南雲和奏)
 * Kaiya Mai (海八舞)
 * Satsuki (咲紫姫)
 * Takamine Yukina (高峯雪菜)
 * Megu.
 * Aiba Chiho (相羽千帆)
 * Ichinose Yuzuki (一ノ瀬結月)
 * Shirayuki Curana (白雪くらな)
 * Yahata Mone (矢羽田もね)
 * Watagashi Mio (綿菓子ミオ)
 * Kurumisawa Narumi (胡桃沢成未)
 * Koizumi Kosame (小泉小雨)
 * MIWOO (ミウ)
 * Luna (月)
 * Naase (なーせ) (Joined July 19, 2021 )
 * 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 )
 * Arisu Ako (有栖あこ) (Joined August 6, 2021 )
 * Tsuno Hirona (津野紘菜) (Joined September 1, 2021 )
 * Nobusawa Asuka (信澤明日香) (Joined September 2, 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 )
 * Sengoku Otori (千石囮) (Joined September 19, 2021 )
 * Nonami Mon (野波もん) (Joined September 26, 2021 )
 * Ide Ryoko (井出涼子) (Joined September 28, 2021 )


 * -|2nd Generation=
 * 2nd Generation
 * Auditions scheduled to start mid August 2021

Former Members
0th Generation=
 * 0th Generation
 * Tachibana Kirari (橘きらり) (Withdrew September 25, 2021 )
 * -|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 )