The 4th Japanese release by IVE including three Japanese original songs! The six-member Korean girl group IVE, who debuted in Korea in 2021 and continues to rapidly expand its popularity worldwide both in name and reality. The long-awaited JAPAN 4th EP is scheduled to include a total of six tracks, including the title track "LUCID DREAM," two additional Japanese original songs, and three Japanese versions. Limited Edition Type I comes with a Blu-ray containing the "LUCID DREAM" MUSIC VIDEO and "LUCID DREAM" Behind The Scenes. An A4 size box, an A4 size photo card (Type I version), a sticker sheet (Type I version), a photo card (Type I version / randomly selected from six kinds), and two application codes (valid only in Japan).