Z2-B5

 is a group within Zero Project. The theme of the group is K-Pop.

The first line-up was announced on February 26, 2023.

Current Members

 * Ide Ryoko (井出涼子) (Founding Member)
 * Kokeshi (こけし) (Joined May 24, 2023)
 * Seru (セル) (Founding Member)

Former Members

 * Kaito (カイト) (Founding Member; Graduated May 23, 2023)
 * Nagase Ryo (永瀬稜) (Founding Member; Graduated May 23, 2023)
 * MIWOO (Founding Member; Graduated May 23, 2023)
 * Kisumi Megu (姫菫めぐ) (Founding Member)