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

 * 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)

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)