13-Gatsu no Asterisk

 (13月のアスタリスク) is an idol boy group that made their stage debut on May 7, 2022. They disbanded after a last live on March 30, 2023.

Final Line-Up

 * Ka-kun. (かーくん; )
 * Yomotsuki Kei (黄泉月けい; )
 * Hinata Rikuto (陽奏りくと; )
 * Kusunoki Tsubasa (楠つばさ; )
 * Shiraishi Yuki (白石ゆき; ) (Joined November 16, 2022)
 * Shiun Sho (紫雲しょう; ) (Joined November 16, 2022)
 * Toyama Eru (橙山える; ) (Joined November 16, 2022)

Former Members

 * Ugetsu Manato (雨月まなと; ) (Withdrew June 29, 2022)
 * Uyu Ritsuki (兎遊りつき; ) (Withdrew June 29, 2022)
 * Shizuki Rei (雫祈れい; ) (Withdrew September 12, 2022)

Digital Singles

 * 1) [2022.12.07] Kataomoi no Angle (片想いのアングル; One-Sided Love Angle)
 * 2) [2022.12.07] Toketa Melon Cream Soda (溶けたメロンクリームソーダ; Melted Melon Cream Soda)
 * 3) [2023.01.19] Starrysky no Yakusoku (Starryskyの約束; Starrysky's Promise)
 * 4) [2023.03.24] Kimi ni Kyun desu. na Ken (君にキュンです. な件; The Case of You Making My Heart Beat.)