Z3-B3

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

The first line-up was announced on October 25, 2022.

Current Members

 * Aimi Yuka (藍南ゆか) (Joined May 24, 2023)
 * Isshiki Hiyori (一色陽頼) (Joined May 24, 2023)
 * Kusaka Hiiro (日下緋彩) (Joined May 24, 2023)
 * Minazuki Reine (水無月黎音) (Joined May 24, 2023)
 * Rio (りお) (Joined May 24, 2023)

Former Members

 * Aone Konoha (蒼音このは; ) (Founding Member)
 * Kumayuri (くまゆり; ) (Founding Member)
 * Sato Suzu (佐藤寿々; ) (Founding Member)
 * Harupon (はるぽん; ) (Founding Member)
 * Yamada Nao (山田菜緒; ) (Joined November 29, 2022, Graduated December 28, 2022)
 * Kusaka Hiiro (日下緋彩; ) (Founding Member, Graduated December 28, 2022)
 * Maria (まりあ; ) (Joined November 29, 2022)
 * Suzu-chan (すずちゃん; ) (Joined November 29, 2022)
 * Nagase Ryo (永瀬稜; ) (Joined November 29, 2022)
 * Aone Konoha (蒼音このは; ) (Joined December 28, 2022)
 * Sawada Nana (澤田なな; ) (Joined December 28, 2022)
 * Shichinohe Asami (七戸あさみ; ) (Joined December 28, 2022)
 * Ari-chan (ありちゃん; ) (Joined December 28, 2022)
 * Hoshino Himari (星乃ひまり; ) (Joined December 28, 2022)
 * Kanzaki Chisato (神崎千聖; ) (Joined January 14, 2023)
 * Misaki (みさき) (Joined January 14, 2023)