Suzaku (Gigai)

One of Xavier's four apostles. He goes by the name Gigai, but Suzaku is his true name. As he was sealed by Nanjou Ran's ancestors, he was confined in her body, though she could call on his power as Xavier's awakening made him wake up from his cell. In Rance Quest, it was revealed that Gigai is capable of reviving every time it's killed, like a Phoenix, but he swaps gender as well, alternating between male and female every time. This means that Gigai isn't actually neither a man or a woman.