 On June 20, The Entertainment Pascal announced that the group's third mini-album was set to be released on June 27 and was titled "Stellar Into the World", with the title track "Archangels of the Sephiroth".The teasers for the release showed an Angel vs. Witch theme, represented by mirroring photos where one had a light theme and the other had a dark theme.This theme was confirmed by both the tags used for the teaser images on social media and in a radio interview starring Stellar.