This is Jaurim EP. [Untitled Records] album, released by CJ Music.
They are one of famous K-rock star, by leader singer 'Kim Yoon Ah', who has attract & beauty. Could be not very special regarding to Western female rock, but Jaurim has their own music style, and they have lots of fandom in Korea. If you're into K-rock, liked Cherry Filter, worth to check albums.
Song List (Some of them had Korean name for songs, so I translated roughly.)
05. Lover in dream