Z4-A2

 is a group within Zero Project. The theme of the group is clarity.

The first line-up was announced in early March 2022.

The second line-up was announced on August 14, 2022.

Current Members

 * Tachibana Ami (立花あみ) (Joined December 28, 2022)
 * Mizuno Seira (水野青空) (Joined December 28, 2022)
 * Kayano Hika (茅野ひか; ) (Joined December 28, 2022)
 * Oto (おと; ) (Joined December 28, 2022)

Former Members

 * Kisaki Riho (希咲りほ) (Founding Member)
 * Shio Yukina (紫桜倖那) (Founding Member)
 * Shichinohe Asami (七戸あさみ) (Founding Member)
 * Uyugu (うゆぐ) (Joined May 2022)
 * Sakura (さくら) (Joined April 2022)
 * Yumesaki Mana (夢咲まな) (May 2022)
 * Utada Yuzu (詩田ゆず) (Joined May 2022)
 * Kanzaki Chisato (神崎千聖) (Joined June 2022)
 * Saki (咲) (Joined April 2022)
 * Sato Haru (砂糖はる) (Joined June 2022)
 * Mizuhata Marina (水畑まりな) (Joined June 2022)
 * Murasame Rena (紫雨レナ) (Joined June 2022)
 * Shirayuki Rara (白雪らら) (Joined July 2022)
 * Kanzaki Nana (神﨑ナナ) (Joined July 2022)
 * Mihoshi Yuno (海星ゆの) (Joined July 2022)
 * Kayano Izumi (茅野伊澄) (Joined August 14, 2022)
 * Harukaze Rina (春風りな) Joined August 14, 2022)
 * Otomori Yuu (音森ゆう; ) (Joined July 2022)
 * Harupon (はるぽん; ) (Joined September 2022)
 * Yukina Yuki (雪名ゆき; ) (Joined September 2022)
 * Aisaka Yuuna (逢坂ゆうな; ) (Joined October 25, 2022)
 * Amane Ichika (天音 いちか; ) (Joined October 25, 2022)
 * Sakurazawa Kotone (桜沢琴音; ) (Joined October 25, 2022)
 * Hanamaru Yuzu (花円柚羽; ) (Joined September 17, 2022)
 * Amuro Kotori (安室ことり; ) (Joined October 25, 2022)
 * Tsushiro Mai (蕾白苺; ) (Joined September 2022)
 * Nanase Kotori (七星ことり; ) (Joined October 25, 2022)
 * Hirata Mitsuki (平田みつき; ) (Joined October 25, 2022)
 * Misora Rin (海空凜; ) (Joined June 2022)
 * Saito Hinata (齋藤ひなた) (Joined November 29, 2022)
 * Tachibana Kana (橘佳奈; ) (Joined October 25, 2022)
 * Hazuki Risako (葉月りさこ) (Joined November 29, 2022)
 * Yuyu (ゆゆ; ) (Joined November 29, 2022)
 * Aizuki Shino (藍月しの) (Joined November 29, 2022)
 * Riria (りりあ) (Joined December 28, 2022)

Trivia

 * Unlike the other Z4-A groups, this group was formed in March 2022.