Abel's 100% Crusnik form has two massive black wings, compared to Cain's white ones, with a larger scythe and two blades, one on each side.
While it is not outwardly stated in the anime, it is hinted at that Cain kills Lilith, causing Abel to change.
It is revealed that Cain, Abel, Seth, and Lilith were "created" for the Mars Colonization Project. Lilith is the "mother", Cain and Abel are the "brothers", and Seth is the "sister".
The shield that the attacking ship uses is called the Aegis Shield.
Tres is revealed to be a model 0-400 Gunslinger.
The Professor reveals a new invention: a flying car.
Cardinal Sforza takes out Lilith's nanomachines in order to help Abel.
The picture, in Leon's locket, is that of his daughter.
In the old language of Albion, Esther's name means "star".
The Pope ends up in an underground town of the Methuselahs, of people who work in The Ghetto.
The Ghetto is the term for Albion's underground factory.
Brother Petros and Sister Paula, from the Department of Inquisition, were trying to get into Buckingham Palace in London, England before Caterina called for them.
The funeral, in the beginning of the episode, was for the Albion Queen.
Seth is Krusnik 003.
Abel and Seth are reunited after 900 years apart.
It is revealed that Seth and Abel are "siblings" which also explains why Abel had not been convinced that the woman he saw earlier was the Empress.
Ion was shot with a special bullet that acts directly on the bacillus in a Vampire's blood. This then turns on the "thirst" and the vampire becomes a beast in order to regain the blood which he lost.
Dietrich Von Lohengrin, the "Puppet Master", can control anyone, human or vampire, living or dead, with his power. He's helped create the Orden's soldiers, who are dead Methuselahs he's reanimated. Although human, he's just as committed to bring about the end of the world.
Seth is formally introduced in this episode.
This is the first time that Esther witnesses Abel in his transformed state.