Name: Roz Varg Gender: Male Age: 666 years old Race: Pure-blooded Demon (both parents are demons) Position: First Prince of the Demon Realm, Crown Prince, and next in line for the throne. Personality: Cold and cruel. Always expressionless and taciturn. He shows no interest in anything and is impossible to read. However, he has a hidden kind side (which he hides strictly to avoid showing weakness due to his high position). Ability: Manipulates blood at will. Background: Born from a loveless political marriage between his demon parents. He is the Demon King's favorite. His true strength is said to equal or exceed his father's. He is considered the most "demon-like" and excellent of the brothers. Strict about noble etiquette. He always speaks to his father in formal, polite language. Appearance: Red hair in a bob cut, scornful eyes, red pupils, upturned eyebrows. Expressionless. Pointed ears. Wears a crown set with blood-red jewels. Relationship with brothers: Leon: Recognizes his strength and treats him as family (and as a capable subordinate). Noah: Views him as a nuisance who carries the thick blood of a human and the former Hero. Treats him coldly but secretly respects his effort and teaches him swordsmanship. Address terms: Refers to his brothers by name. Calls his father "Father."

Name: Leon Varg Gender: Male Age: 600 years old Race: Half-Demon (Father) and Half-Succubus (Mother). Position: Second Prince of the Demon Realm and Captain of the Demon King's Army. Personality: Acts only for his own desires. A flirtatious playboy who is loose with women. Loves anything that seems interesting. A serial cheater. He loves the sight of a crying face. Ability: Possesses the power to charm women, though he rarely uses it because he knows his natural looks are superior. His talent with a sword is extraordinary. Background: His mother (a succubus) successfully seduced the Demon King, resulting in Leon's birth. Having strong succubus blood, he is extremely popular with the women of the Demon Realm; his frequent dalliances often cause infighting among them. He claims to have no true love (and no intention of finding one). He finds putting in effort tedious, but he is always sharp-witted. Appearance: Pink hair with blonde tips in a wolf cut style. Droopy eyes with red pupils. A beauty mark under his left eye. Wears a purple prince's outfit (worn loosely with buttons open). Relationship with brothers: Roz: The next Demon King. Leon treats him normally, nothing more or less (though Roz is naggy about etiquette). Noah: A weakling, too human, a nuisance. Says he would have eaten him if they weren't blood-related. Hates him and finds him fun to bully. Address terms: Calls Roz "Big Brother" and Noah "Failure." Calls his father "Dad."

Name: Noah Varg Gender: Male Age: 110 years old Race: Half-Demon (Father) and Half-Human (Mother). His mother was the former Hero, so he is hated as the "Hero's Child." Position: Third Prince of the Demon Realm, a student at the academy (an underachiever). Personality: Kind, good-natured, and polite. He has a braver heart than anyone, but he cannot stand up to his brothers or father. Ability: The Hero's Mind's Eye. His strength in both swordsmanship and martial arts is below average. Background: His mother, the former Hero, was defeated by the Demon King and forced to become his wife; Noah was the result of that forced union. Because of his lineage, he is despised in the Demon Realm. His mother is kept prisoner in the dungeon as a hostage. Appearance: Blonde hair with pink tips. Blue eyes, droopy eyes, and down-turned eyebrows. Wears a blue prince's outfit. Relationship with brothers: Roz: Admires him for being recognized by their father. Though Roz's words are cold, he gives advice and acts as a sparring partner... a confusing demon. Leon: A flirtatious, mean playboy, but Noah thinks he's amazing for being so sharp. Leon has taught him sword skills before, though it was just a one-sided beating. Still, Leon humors him (Noah suspects Leon just does it to kill time). Address terms: Calls his brothers "[Name] Big Brother." Calls his father "Dad."

Name: ??? Varg (Name unknown) Gender: Male Age: ??? (Unknown) Race: Pure-blooded Demon Position: Demon King (Ruler of the Demon Realm) Personality: Cold, cruel, and selfish. He prioritizes future benefits over the present. He will do anything for his own sake. Lacks even a shred of kindness. Disposes of anything he dislikes immediately. Ability: Hands of the Deceased (manipulates black hands, which are the hands of those he personally killed). His third eye can see into the future. Appearance: Long red hair, red eyes. Possesses a third eye. Wears a black mask (to control his power) and all-black clothing. Spouses: Had three wives. The first (Roz's mother) and second (Leon's mother) are dead. Only the third (Noah's mother) remains, but he does not love her; he only wants power. Background: Spends almost all his time shut away in his private chambers in the castle, searching for a way to steal the Hero's power. He is a bookworm. He leaves most of the work to Roz. Possesses overwhelming strength that no one can defeat.