Z5-D3

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

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

 * Ichinose Yunon (一野瀬結音) (Joined March 2022)
 * Oto (音桜) (Joined March 2022)
 * Karen Bouquet Doll (カレン・ブーケドール) (Joined March 2022)
 * Jun (Joined March 2022)
 * Yamine Nemu (矢峰ねむ) (Joined March 2022)

Former Members

 * Airu (愛琉) (Founding member; Graduated November 7, 2021)
 * Shimotsukasa Moe (下司萌) (Founding member; Graduated November 7, 2021)
 * Sawada Nana (澤田なな) (Founding member; Graduated November 12, 2021)
 * Watarai Urumi (綿来うるみ) (Founding member; Graduated November 12, 2021)
 * Omura Himari (大村ひまり) (Founding member; Withdrew November 28, 2021)
 * Hazuki Rio (はづきりお) (Joined December 4, 2021)
 * Kurase Mashiro (倉瀬ましろ) (Joined December 4, 2021)
 * Nanao Azu (七尾アズ) (Joined December 4, 2021)
 * Urata Mion (浦田みおん) (Joined December 4, 2021)
 * Wakamiya Yuriko (若宮ゆりこ) (Joined December 4, 2021)