13-Gatsu no Plasma

 (13月のプラズマ) was an idol boy group that launched in August 2021. Their concept is "an idol group that observes each of the 13 months.". They disbanded around February 2022

Final Line-up

 * Yokase Yu (夜枷ユウ; )
 * Koigakubo Yuki (恋ヶ窪 癒輝; )
 * Momobami Yuna (桃喰ゆな; )
 * Naruse Umi (鳴瀬うみ; )
 * 777
 * Dekomori Tsugu (凸守つぐ; ) (Joined late 2021)
 * Jinguuji Shy (神宮寺シャイ; ) (Joined late 2021)

Former Mmebers

 * Tsukishima Rirari (月島りらり; )

Discography
TBA