Lucif

Оригінальне ім’я: リュシフ

Lucif is Lucia's father who, before she was born, left to find the path to the True World. His past is filled with mysteries, and Nahashi refuses to talk about the subject with Lucia. In the anime, it is thought he turned himself into a Virus so he could obtain the True World. In the manga, it appears he was possessed by Aion. (Source: Wikipedia)