The main character of the story.

Vaelion Luciferis is the son of Serapha Luciferis and Ignarius Luciferis, and has two siblings, his eldest brother, Noctarion Luciferis and his elder sister Celestria Luciferis. 

Vaelion is the part of the noble Luciferis family that rules over the 9th layer of hell. 

Vaelion is over 50 years old which is relatively young for demons. 

Vaelion inherited the bloodlines of both his mother and father, meaning he has both of their bloodline powers. He also inherited both his mother and father's physical family aspects such as their red skin and white hair. 

The sister of the main character of the story.

Celestria Luciferis is the daughter of Serapha Luciferis and Ignarius Luciferis, and has two siblings, her eldest brother, Noctarion Luciferis and her youngest brother Vaelion Luciferis.

Celestria is the part of the noble Luciferis family that rules over the 9th layer of hell. 

Celestria is well over four centuries old which is not very old for a demon. 

Celestria only inherited the bloodlines of her mother as such she only has the bloodline powers of her mother. Though she also did not inherit any of her father's physical aspects of his bloodline such as the Luciferis red skin. 

The father of the main character of the story.

Ignarius Luciferis is the son of Nephrek Luciferis and Zephyria Luciferis, and has a wife, Serapha Luciferis, and three children, his eldest child, Noctarion Luciferis and his daughter, Celestria Luciferis, as well as his youngest son, Vaelion Luciferis.

Ignarius is the part of the noble Luciferis family that rules over the 9th layer of hell. 

Ignarius's true age is currently unknown, but it is speculated that he is well over a millennia old.

Ignarius is a true bred Luciferis child being the product of an incestuous relationship by his parents, so he has the signature red skin and dark black hair of the family, as well as the signature bloodline power of the Luciferis family to command infernal light and radiance, as well as gain power from the hubris of themselves.

The mother of the main character of the story.

Serapha Luciferis is the wife of Ignarius Luciferis, and the mother of her three children, Noctarion Luciferis, her eldest son, Celestria Luciferis, her daughter, and Vaelion Luciferis, her youngest son.

Serapha is the currently part of the noble Luciferis family that rules over the 9th layer of hell. But she was born into the noble family of Beelzarian that rules over the 6th layer of hell before she married Ignarius.

Serapha's true age is currently unknown, though it is speculated that she is well over a millennia old.

Serapha is a child of the Beelzarian family, so she has the signature characteristics of the family such as her white hair, and pale skin, as well as the signature Beelzarian bloodline family power to consume life forces and grow stronger the more they eat or indulge in gluttony.

The elder brother of the main character of the story.

Noctarion Luciferis is the son of Serapha Luciferis and Ignarius Luciferis, and has a wife, Evelyn Luciferis, as well as two siblings, his younger brother, Vaelion Luciferis, and his younger sister, Celestria Luciferis. 

Noctarion is the part of the noble Luciferis family that rules over the 9th layer of hell. 

Noctarion's true age is unknown, but he is speculated to be well over half a millennia old.

Noctarion only inherited the bloodline powers of his father's side, with just a few physical characteristics of his mother's side, such as the few white streaks in his black hair. 

The sister-in-law of the main character of the story.

Not much is currently known about Evelyn Luciferis's family except that she is married to Noctarion Luciferis.

Evelyn is currently part of the noble Luciferis family that rules over the 9th layer of hell. Though she was originally born into the noble family of Belphegorin that rules the 4th floor of hell. 

Evelyn's true age is currently unknown, though given from what she has said thus far it is speculated that she is old even among the other demons. 

Evelyn is part of Belphegorin family and has all of the physical charictoristics of her family, such as her indigo hair, and pale complexion. As well as inheriting the signature Belphegorin bloodline power of illusion and deception, manipulating perceptions and sowing laziness, while gaining power from the laziness of others and oneself.