Z3-A1

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

The first line-up was announced on March 16, 2022.

Current Members

 * Azuma Mashiro (東茉白) (Joined May 2022)
 * Kisaki Riho (希咲りほ) (Joined May 2022)
 * Kururugi Yun (枢木ゆん) (Founding Member)
 * Sioreta JK (しおれたJK) (Joined May 2022)
 * Shirahana Mariya (白花まりや) (Joined May 2022)
 * Hanasaki Lisa (華咲りさ) (Founding Member)
 * Fujimiya Karen (藤宮かれん) (Joined May 2022)
 * POLLIE (Joined May 2022)
 * Mito Chinami (美藤千波) (Founding Member)

Former Members

 * Kashii Natsuki (花椎なつき) (Founding Member)
 * Nagase Ryo (永瀬稜) (Founding Member)