[3] At Bis' final concert on July 8, 2014, Megumi Koshōji announced that she would form a new idol group.
[1] They released their debut singles, "White" and "Black", exclusively at their live shows from March 14, 2015.
On March 27, Kaori Sōmoto left the group and Rin Wada joined.
[7] The single "412" was released on July 19, 2017,[8] followed by "Cotoeri" on December 13,[9] In early 2018, the group signed with UK label, Read The Air Records.
[14] Their fourth studio album, Umi to Uchu no Kodomotachi, was released on December 18, 2019.