Hi, I'm Italian, and my theory is based on the actual Bible, I'm a scout, and in scouts we are very religious, and during a discussion with a priest, I discovered something. Apparently canonically Lucifer and Satan are two different people and that the sins represent the sinful effects of the series, so Lucifer actually rules the circle of Pride, Satan rules Wrath, Beelzebub Gluttony, Mammon Greed, Asmodeus Lust and so on... However, in the Bible it is written that all of them were angels, like Lucifer, but when the latter went to war with God, all the others joined him in the battle, but Lucifer lost, so they were all thrown into Hell. In fact, this is why the various sins have the shape of animals, like the Cherubim we saw in Ep. 4 s. 1, because before they were also cherubim, but hell "corrupted" them and that's why they are "monstrous". But Asmodeus says at the beginning of Ep. 6 s. 2, "I have known him since hell was born..." referring to Mammon, so in my opinion after the end of the battle maybe the sins, except maybe Lucifer, lost their memories or were "resurrected" in a demonic version. What do you think?, let me know if this theory makes sense or is bullshit.