Z5-D2

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

The first line-up was announced on July 11, 2021.

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

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

The third line-up was announced in March 2022.

Current Members

 * Koharu (小陽) (Joined March 2022)
 * Shimizu Yuuka (清水優香) (Joined March 2022)
 * Shimizu Erika (清水絵里花) (Joined March 2022)
 * Himekawa Rin (姫川りん) (Joined March 2022)

Former Members

 * Sashiro Oto (佐白おと) (Founding member; Graduated November 7, 2021)
 * Shinonome Meguru (東雲めぐる) (Founding member; Graduated November 7, 2021)
 * Kurase Mashiro (倉瀬ましろ) (Founding member; Graduated November 12, 2021)
 * Harumi Hina (春海妃花) (Founding member; Graduated November 12, 2021)
 * Mochizuki Ko (望月心桜) (Founding member; Graduated November 12, 2021)
 * Hazuki (葉月) (Joined December 4, 2021; Withdrew January 12, 2022)
 * Chisato (千聖) (Joined December 4, 2021)
 * Hoshimiya Rin (星宮りん) (Joined December 4, 2021)
 * Mihara Chiyo (三原千夜) (Joined December 4, 2021)
 * Nanami (ななみ) (Joined December 4, 2021)