Zero Project

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

Every 3 months, members are promoted and demoted, rotating between groups based on their popularity ranking. This regular event is called Toryumon (登竜門; Gateway to Success).

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.

On February 28, it was announced that the Z3 league would start on March 16, 2022. It was also announced that the Z5 league would be ending on March 4th and the Z4 league would be ending on March 5th.

On June 8, it was announced that the Z3 league would be ending on June 23, 2022. It was also announced that the Z2 league would be starting up on August 14th.

On December 28, it was announced that 5th generation members would be joining Z5.

2023

 * TBA

Groups in Ranking order
{{Cols|2|

Zero 2

 * Z2-A1
 * Z2-A2
 * Z2-A3
 * Z2-A4

Zero 3

 * Z3-A1
 * Z3-A2
 * Z3-A3
 * Z3-A4
 * Z3-B1
 * Z3-B2
 * Z3-B3
 * Z3-B4
 * Z3-C1
 * Z3-C2
 * Z3-C3
 * Z3-C4

Zero 4

 * Z4-A1
 * Z4-A2
 * Z4-A3
 * Z4-A4
 * Z4-B1
 * Z4-B2
 * Z4-B3
 * Z4-B4

Zero 5

 * Z5-A1
 * Z5-A2
 * Z5-A3
 * Z5-A4
 * Z5-A5
 * Z5-B1
 * Z5-B2
 * Z5-B3
 * Z5-B4

Currently Inactive
}}
 * Zero Project Senbatsu
 * Z2-A5
 * Z2-A6
 * Z2-B1
 * Z2-B2
 * Z2-B3
 * Z2-B4
 * Z2-B5
 * Z3-A5
 * Z3-B5
 * Z3-C5
 * Z4-A5
 * Z4-B5
 * Z4-D1
 * Z4-D2
 * Z4-D3
 * Z4-D4
 * Z4-D5
 * 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 Ranking Explanation
Groups are firstly separated by leagues, from Zero 1 to Zero 5 (Z1-Z5).

Within each league, they are distributed into ranks from A to E, with "A" being the highest rank.

In each rank, they are further put into 5 concepts, from 1-5 based on their individual abilities. The five concepts are:
 * 1) Royalty
 * 2) Clarity
 * 3) Powerful
 * 4) Personality
 * 5) K-Pop

When a member first joins, they will always start from the Zero 5 league.

Members
''Members listed in order that they are displayed on website. Join date is based off of the date registered on the member's profile.''