[AnimeSpirit]

I found the wicked battle during the last episode between Cain and Abel. Abel is the demon-looking one. You'll notice that Cain uses a large spear which fans suggest is a reference to the Spear on Longinus. Abel's scythe, I assume, is merely a reference to the Grim Reaper.

There is a short flashback during this clip that shows all siblings when they were younger and still human. Lilith makes a short appearance here too as their mother-figure type.