Lilith (Lilith ~りりす~)'s first maxi-single.

Track 11, ANATANIMUKATTE MASSHIGURA, is joke song and [semi-]secret track (it's not mentioned in the official tracklist, but the title and lyrics are printed on the tray insert). Track 4 features a brief spoken-word skit followed by several minutes of silence/static, which continues through tracks 5~10 and also track 12. In total, this portion of the CD (tracks 4~12) features about 20 minutes of silence/static and 2 minutes of song.

Yoru no Niji (夜の虹) is likely a cover of a song by SPIRYTEAR.