Background:Roa is the main antagonist of the story. He was originally a priest, who betrayed the church in order to become a dead apostle. After this, he met Arcueid after some time, and fell in love with her. But the love became a bit sour, and she hunted him for possessing bodies. After every reincarnation, his soul degraded, and he turned into what he is today. In this time, he possessed Tohno SHIKI, the true son of Makihisa. With the possession, he decides to hurt the family, and is locked up. But even when the lock up passed, he stayed the same, bitter for Arcueid, and posing a threat to Shiki.