It was never released in any form and only played live four times: The first time on 8 August 1997, the second day of Album「MISSA」発売記念2days at 新宿 LOFT, then on 28 and 30 October that year during CRUCIFY OF MARIA …TO "MISSA" あなたの『美的・発情・香』を呼び起こす and for the last time on 5 May 1998 during 「楓」～if trans...～ Mechanism For Leave - Unknown...Despair...a Lost... ～裁きの血舞台～.
Unlike other indies songs, this one's name is not official, but was made up by fans. The namesake is likely a song called Rebirth by the Japanese rock band Eliphas Levi. They were active during Dir en grey's early days and released an album called リデルの赤い書物 Rideru no Akai Makimono on 24 June 1998. Rebirth is the fourth track on that album, you can listen to it here.