REOL

REOL, stylized as RΞOL, was a Japanese musical unit formed by vocalist and lyricist Reol, Vocaloid arranger Giga and movie director and producer Okiku. The trio signed with Toy's Factory as a group in 2015, released the album Sigma in 2016 and disbanded in 2017. They performed both the opening and ending themes for Soutai Sekai.