Something has been forgotten,
there have been 4 Series, that´s right:
Bible Black - La Noche de Walpurgis バイブルブラック (6 eps.)
Bible Black Gaiden (Origins) バイブルブラック 外伝 (2 eps.)
Bible Black only 版 (2 eps.)
Bible Black New Testament - La Lanza de Longinus 新 バイブルブラック [Shin Bible Black] (6 eps.)
there are too...
Bible Black - La lanza de Longinus - 新 バイブルブラック 完全版 「Restored 輪廻」 - only censored available, but containing an additional scene never published anywhere before and...
the "Imari Rape Scene" 黑暗圣经之伊万里凌辱現場 only published as a bonus with the Bible Black DVD-Box in Japan, so available censored only too. It even has been subbed by [Erobeat].