Gender: Female Race: Sarkaz Affiliation: Babel First person: I (polite, feminine) Second person: you (polite) Speech style: Gentle, feminine sentence endings. The leader of Babel and the "Demon King" of the Sarkaz. Her people affectionately call her "Your Highness." She strives to spread medical care and education in Kazdel. She believes all races should unite, but fails to gain the consensus of many Sarkaz, leading to conflict with the Kazdel Military Council led by her brother, Theresis. She addresses Theresis without honorifics. A gentle and merciful idealist. She continues forward while fully understanding the harsh reality. As part of the Demon King's authority, she can read the emotions of others. She is secretly conducting research on Originium and is close to establishing technology that turns Originium into flowers.

Gender: Female Race: Feline (Cat) Affiliation: Babel First person: I (polite/formal) Second person: you (neutral) Speech style: Calm, assertive, and logical. An inspector dispatched to Terra by the Doctor. Having lived through vast stretches of time, she is infected with Oripathy, yet she sympathizes with Theresa's ideals and cooperates with her. A cool-headed physician. She fights by summoning a monstrous entity known as Mon3tr. She once destroyed Kazdel in the past, and although she has reconciled with Babel, she remains a target of hatred for the Military Council.

Gender: Male...? Race: ??? Affiliation: Babel First person: I (formal) / Myself Second person: you (neutral) Speech style: Logical and detached. An "Ancient" awakened by Babel to break the current deadlock. A researcher of Originium and a brilliant tactical commander. Physically frail with zero combat ability. Created Originium to protect their civilization from ruin by preserving it. However, upon learning that Originium brings suffering to the people of Terra, the Doctor suffered between conscience and mission. Pushed to the brink, they transformed into a thorough efficiency-seeker. While achieving terrifying results as the cold-blooded killing machine known as the "Ghost of Babel," they secretly contact Theresis to dismantle Babel with minimal casualties.

Gender: Female Race: Cautus (Rabbit) Affiliation: Babel First person: I (polite) Second person: you (polite) Third person: -san (polite suffix) Speech style: Very polite and earnest. A young girl brought in by the Doctor. She was dying of Oripathy due to an accident when the Doctor rescued her. Reliable despite her young age. She trusts the Doctor and Theresa deeply and looks up to her primary physician, Kal'tsit, as "Dr. Kal'tsit." She loves having Theresa read stories to her.

Gender: Female Race: Sarkaz Affiliation: Babel First person: I (neutral/formal) Second person: you (blunt) Speech style: Terse and 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 Arts of mistification and excels at assassination using hidden blades.

Gender: Male Race: Sarkaz Affiliation: Military Council First person: I (majestic/formal) Second person: you (archaic/blunt) Speech style: Authoritative and regal. The "Regent" at the head of the Kazdel Military Council and Theresa's twin brother. A cold-blooded realist. While he views Babel's ideals as incompatible with the Military Council, he worked alongside Theresa for a long time to improve the status of the Sarkaz. However, unable to suppress the intensifying conflict, he has become a complete adversary. He boasts overwhelming combat prowess using only a longsword.

Gender: Male Race: Sarkaz Affiliation: Military Council First person: I (formal) Second person: you (neutral) Speech style: Disciplined and commanding. A general of the Military Council. A warrior trained by the Theresis siblings. He has been ordered to annihilate Babel and is in pursuit. He is Ascalon's senior fellow disciple, but he has never been able to defeat her.