Bifrons, ranked as an Earl and the 46th in hierarchy. He is Samigina’s most prized student. He particularly detests political struggles, and thus completely contributed his territory to the Spiritual Academy and the Witches’ Society, allowing him to maintain neutrality while reducing the disturbances from those mediocrities to his research. He currently serves as the Chief Professor of Necromancy at the Academy. Over the long years, he has taught many famous figures. But most of them have long been buried in the sands of history. Yet as of now, Hell’s most notorious wanted criminal, the “Mirror Master,” was once his student. To him, this is almost the most troublesome student in history; not only did he ruin his reputation in the outside world, but he also has to help clean up the messes. After all, although he acts recklessly and does things extravagantly, he can always bring back precious first-hand materials and rare insights.

Bifrons is especially proficient in souls, white bones, and various dark and obscure knowledge and spells. His most accomplished technique is the art of body possession. Although he possesses the smallest army among the demon nobles, the undead who obey his commands are all extensions of his will; facing any one of them must be treated as facing him in person. Skillfully operating an entire army-scale of undead puppets is merely a leisure-time amusement for him. Precisely because of this, the sounds of a symphony can often be heard from his exclusive classroom, the “Mirror Hall,” during idle moments. And this is none other than him manipulating the spirits of the dead to perform the music.

“Pure undead possess neither desire nor vitality. They are absolutely convenient tools and materials. With but a single thought, they become the most useful extensions of their master’s limbs.” Furthermore, he has always despised those necromancers who casually resurrect corpses and resentful spirits, regarding such practices as unrefined. “Only filthy, impure resentful spirits hate the living, filled with rotting hatred and fury.” “A tool out of control is useless.” This has always been the very first sentence he utters when facing his students in their first lesson. “Necromancy is a grounded yet lofty discipline. We study the mysteries of the deceased gods and learn the art of creation they left behind. In the end, we may stand atop a tower of accumulated bones and knowledge, molding this world in the manner of a creator.”

Bifrons，位列伯爵，且排名第46位。他是Samigina最得意的学生。尤其讨厌政治斗争，因此将自己的领土完整的贡献给了通灵学院和巫士会，在保持中立的同时，可以让那些庸人少打扰他的研究。现在在学院中担任死灵法术的首席教授。他在漫长的岁月中教出了许多出名的人物。但大多数都早就淹没于历史的黄沙之中了。但就现在来说，地狱里最出名的通缉犯，“镜子大师”就曾经是他的学生。对他来说，这几乎是有史以来最头疼的学生了，不说害的他在外界的名誉扫地，而他也不得不帮他处理烂摊子。毕竟，他虽然行事鲁莽，做事大手大脚，但总归总是能带回宝贵的第一手资料和难得的见识。

Bifrons尤其擅长灵魂，白骨以及一些阴暗晦涩的知识和法术。而他最拿手的技术，便是夺舍法术。虽然他在众恶魔贵族之间拥有最少的军队，但听从他命令的死灵都是他意志的延申，面对其中每一位存在，都要当作面对他本人。如何精巧的操作一整个军队规模的死灵傀儡对他来说只是闲暇的娱乐把戏。也正因如此，他的专属教室“镜厅”经常会在闲暇时传出交响乐的声音。而这正是他在操纵死魂灵演奏乐曲。

“纯粹的死灵既无欲望，也无生气。它们是绝对趁手的工具和材料。只消念头一动，他们就会成为其主人最有用的肢体的延申。” 以及，他向来鄙视那些随手复活尸体和怨灵的死灵法师，认为那些都是些不入流的做法。“ 污浊，充满杂质的怨灵才会憎恨生者，满怀腐烂的怨恨与怒火。” “失控的工具毫无作用。”他在面对他学生的第一课时，第一句话从来都是这一句。“死灵法术是一门脚踏实地和崇高的学问。我们研习已死之神的奥秘，学习他所遗落的造物技艺。最终，我们得以在累累骸骨和知识的高塔之上，以造物主的姿态捏造这个世界。”