Z5-C2

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

The first line-up was announced on July 10, 2021.

They made their stage debut on August 14, 2021 @KANDA SQUARE HALL.

The second line-up was announced on August 14, 2022.

Current Members

 * Asahina Rie (朝比奈りえ) (Joined March 6, 2023)
 * Kimizuka Mei (君塚メイ) (Joined March 6, 2023)
 * Sakurazaka Mei (桜坂愛衣) (Joined March 6, 2023)
 * Reika Emi (礼華えみ) (Joined March 6, 2023)
 * Rooru (ロール) (Joined March 6, 2023)

Former Members

 * Sakashita Airi (坂下愛麗) (Founding member; withdrew August 6, 2021 )
 * Hana (ハナ) (Founding member; withdrew August 13, 2021 )
 * Nobusawa Asuka (信澤明日香) (Joined September 2, 2021 ; Withdrew October 15, 2021)
 * Arisu Ako (有栖あこ) (Joined August 6, 2021 ; Withdrew before November 7, 2021)
 * Hashimoto Yuki (橋本侑季) (Founding member; Graduated November 8, 2021)
 * Ichiba Uno (市葉羽乃) (Founding member; Graduated November 12, 2021)
 * Kururugi Yun (枢木ゆん) (Founding member; Graduated November 12, 2021)
 * Kasumi (かすみ) (Joined August 14, 2022)
 * Nanase Kotori (七星ことり) (Joined August 14, 2022)
 * Miyamori Nozomi (宮森のぞみ) (Joined August 14, 2022)
 * Miyazuki Hiyori (宮月ひより; ) (Joined September 17, 2022)
 * Ikebata Itsuki (池端樹; ) (Joined August 14, 2022)
 * Usamaru (兎丸; ) (Joined August 14, 2022)
 * Hanamaki Kie (花巻きえ; ) (Joined September 17, 2022)
 * Saito Madoka (斎藤まどか) (Joined October 25, 2022, Graduated November 29, 2022)
 * Okada Reiko (岡田怜子)
 * Todoroki Shizuku (轟雫玖)
 * Hanamiya Riko (花宮りこ; ) (Joined September 17, 2022)
 * Mio (澪) (Joined November 29, 2022, Graduated December 28, 2022)
 * Ruki (るき; )
 * Fuefuki Neko (笛吹 ねこ; ) (Joined December 28, 2022)
 * Uesaka Momiji (上坂紅葉) (Joined December 28, 2022)
 * Ato Rie (あとりえ; ) (Joined December 28, 2022)
 * Ichinose Kokoro (一ノ瀬こころ) (Joined December 28, 2022)