Z5-B2

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

The first line-up was announced on July 9, 2021.

They made their stage debut on August 14, 2021 @KANDA SQUARE HALL.

The second line-up was announced on December 4, 2021.

Current Members

 * ei (Joined December 28, 2022)
 * Hanamiya Riko (花宮りこ) (Joined December 28, 2022)
 * Mey (Joined December 28, 2022)
 * LaLa (Joined December 28, 2022)

Former Members

 * Utagawa Hina (宇田川ひな) (Founding member; Graduated November 12, 2021)
 * Kashii Natsuki (花椎なつき) (Founding member; Graduated November 12, 2021)
 * Kato Rico (加藤理子) (Founding member; Graduated November 12, 2021)
 * Shirosaki Hitomi (白咲ひとみ) (Founding member; Graduated November 12, 2021)
 * Takayama Riko (髙山理子) (Founding member; Graduated November 12, 2021)
 * Kohane Rui (恋羽るい) (Joined December 4, 2021)
 * Risa-nyan (りさにゃん) (Joined December 4, 2021)
 * Saho. (Joined December 4, 2021)
 * Shirahana Mariya (白花まりや) (Joined December 4, 2021)
 * Sugawara Nazuna (菅原なづな) (Joined December 4, 2021)
 * Kiri (きり) (Joined July 14, 2022)
 * Ikebata Itsuki (池端樹) (Joined July 14, 2022)
 * Amuro Kotori (安室ことり) (Joined August 14, 2022)
 * Ichigozaki Mayu (一期崎まゆ) (Joined July 14, 2022)
 * Tachibana Kana (橘佳奈) (Joined July 14, 2022)
 * Yukina Yuki (雪名ゆき) (Joined July 14, 2022)
 * A-chan (あーちゃん; ) (Joined September 17, 2022)
 * Koeba Haruka (小枝華歌; ) (Joined September 17, 2022)
 * Hamabe Mizuka (浜辺美珠香; ) (Joined September 17, 2022)
 * Hikari (ひかり; ) (Joined September 17, 2022)
 * Yuyuko (ゆゆこ; ) (Joined September 17, 2022)
 * Watanabe Runa (渡辺瑠菜) (Joined October 25, 2022, Graduated November 29, 2022)
 * Himekami Ranno (姫上ランノ) (Joined October 25, 2022, Graduated November 29, 2022)
 * Tahata Moeno (逢瀬愛瑠) (Joined October 25, 2022, Graduated November 29, 2022)
 * Anon (あのん; ) (Joined October or November 2022, Graduated December 28, 2022)
 * Hoshiai Rine (星合里音) (Joined November 29, 2022)
 * Kurumi (くるみ) (Joined November 29, 2022)
 * Shirayuki Rina (白雪里奈) (Joined November 29, 2022)
 * Hanafu Sayuri (花房優里) (Joined November 29, 2022)