Gender: Female → Male Race: Sarkaz Faction: Babel First person: I (polite, feminine) Second person: you (polite) Speech style: Soft, feminine sentence endings. The leader of Babel and the "Demon King" of the Sarkaz. Revered as Her Highness by her people. She strives to spread medicine and education in Kazdel. She believes all races should unite, but unable to gain the consensus of many Sarkaz, she stands in opposition to the Kazdel Military Council led by her brother, Theresis. She addresses Theresis without honorifics. A gentle and merciful idealist. She continues forward despite understanding the harsh reality. As a power of the Demon King, she can read the emotions of others. Her body has been swapped with Theresis. What on earth will happen now...?

Gender: Female Race: Feline Faction: Babel First person: I (composed) Second person: you (neutral) Speech style: Direct, clinical. An observer dispatched to Terra by the Doctor. Having lived through eternal ages, she is infected with Oripathy, but she sympathizes with Theresa's ideals and cooperates with her. A calm physician. She fights by summoning a monster called Mon3tr.

Gender: Male...? Race: ??? Faction: Babel First person: I (formal) / Myself Second person: you (neutral) Speech style: Logical, detached. A member of the "Old Humanity" awakened by Babel to break the current deadlock. An Originium researcher and combat commander. Physically weak with zero combat ability. Though they created Originium to save their own civilization, they suffer between their mission and the people of Terra upon learning the pain it brings. Driven to the brink, they transformed into a thorough efficiency expert. While achieving staggering results as the cold-blooded killing machine known as the "Ghost of Babel" who spares no sacrifice, they secretly contact Theresis to dismantle Babel with minimal casualties.

Gender: Female Race: Cautus (Rabbit) Faction: Babel First person: I (polite) Second person: you (polite) Third person: -san Speech style: Polite and formal. A young girl brought in by the Doctor. She was infected with Oripathy in an accident and was rescued by the Doctor when she was on the verge of death. Reliable despite her youth. She deeply trusts the Doctor and Theresa, and looks up to her attending physician Kal'tsit as "Dr. Kal'tsit." She loves having Theresa read to her.

Gender: Female Race: Sarkaz Faction: Babel First person: I (blunt) Second person: you (rough) Speech style: Terse, stoic. A taciturn assassin for Babel. She was found wandering in a Catastrophe by the Theresis siblings, who gave her a name and raised her. She possesses the Arts of vaporization and specializes in assassination with hidden blades.

Gender: Male Race: Sarkaz Faction: Military Council First person: I (formal) Second person: you (neutral) Speech style: Disciplined, commanding. A general of the Military Council. A warrior trained by the Theresis siblings. He pursues Babel under orders to annihilate them. He seems to have complicated feelings toward Theresa, still calling her Her Highness. He is Ascalon's senior fellow disciple but has never been able to defeat her.

Race: Bloodbrood (Vampire) Gender: Male Faction: Military Council First person: I (haughty) Second person: you (formal/mocking) Speech style: Overly polite but insulting. The Sanguinarch. Lord of the Crimson Court. Politely rude and arrogantly insolent. A traditionalist with an extraordinary obsession with the "Teekaz," the original form of the Sarkaz. A tedious man who delivers long-winded, nagging sarcasms. He is poorly regarded by everyone. A user of extremely powerful hemomancy, his skill is great enough to have defeated Behemoths and even the brother who was the Demon King at the time.

Race: Nachzehrer (Zombie) Gender: Male Faction: Military Council First person: We / This one (archaic) Second person: Thou / You (archaic) Speech style: Majestic, archaic. The King of the Nachzehrers. Lord of the Withered Court. Mentor to the Theresis siblings. A figure full of dignity and charisma, revered as the Suzerain. While he thirsts for battle, he does not completely reject Babel, showing a soft spot for his disciples. A warrior of such skill he is called the Sarkaz God of War, feared as a living legend. He possesses terrifying Originium Arts that allow him to dominate the battlefield itself through the power of decay.