Trinity Blood volume 3 features story by Sunao Yoshida and art by Kiyo Kyujo.

The newly initiated Sister Esther has joined up with the warriors of the Vatican, but she's suspicious of the relationship between Cardinal Caterina and Abel... especially when Caterina starts to make friendly diplomatic gestures towards the Empire in the East, where vampires rule! When two emissaries appear in Rome, suspicions are deepened once again - but just who are these mysterious men?