UmArca.

umArca. is an idol group formed in August 2020. They began activities on December 17, 2020.

On April 2, 2021, it was announced that they will disband at their concert on April 24.

Final Line-up

 * Ouse Aru (逢瀬ある; )
 * Kurosaki Yuni (黒咲ゆに; )
 * Sasahara Rikako (笹原りかこ; )
 * Shinonome Chinami (東雲ちなみ; )
 * Yokaze Ramune (夜風らむね; )

Former Members

 * Nagatsuki Hotaru (長月ほたる) (Left October 4, 2020)

Singles

 * 1) [2021.04.13] aQtor