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

 * Kusaka Hiiro (日下緋彩; ) (Founding Member)
 * Suzu-chan (すずちゃん; ) (Joined November 29, 2022)
 * Nagase Ryo (永瀬稜; ) (Joined November 29, 2022)
 * Maria (まりあ; ) (Joined November 29, 2022)
 * Yamada Nao (山田菜緒; ) (Joined November 29, 2022)

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)