|Overcount II. Lucifer's Choice|
|Japanese airdate:||July 7, 2005|
|English airdate:||September 7, 2006|
|Previous episode:||Overcount I. The Belfry of Downfall|
|Next episode:||From the Empire|
Overcount II. Lucifer's Choice is the tenth episode of the Trinity Blood series.
Cardinal Caterina Sforza is placed under house arrest for her suspicion of Archbishop d'Este. However, it is soon revealed that the archbishop is in league with the Rosenkreuz Orden, with Isaak Fernand von Kämpfer working under him. Knowing that he would be suspected, he had the Silent Noise device placed within the obelisk instead of the bell as a preemptive measure. After being informed by Sister Esther Blanchett that Cardinal Sforza is in danger, Father Abel Nightroad goes to her aid and confronts Isaak. Meanwhile, the AX unit learns of the true nature of the obelisk and attempts to stop Archbishop d'Este from activating the Silent Noise system. Abel is able to defeat Isaak with his 80% Crusnik form; at the same time, Archbishop d'Este is captured and prevented from destroying Rome. However, due to his vow to never kill again, Abel chooses not to finish off Isaak, who then escapes.