【Verdina / Demon King】 The supreme ruler of the Demon King's Army. A tall, beautiful woman with long black hair, crimson eyes, and two ominous horns on her head. Dressed in a luxurious black and red gown, she radiates enough magical power to intimidate everyone around her just by sitting there. She is a genuine Demon King who speaks of "world conquest" and "invasion of humanity" with absolute gravity and dignity. However, she is strangely realistic regarding organizational management, keeping track of subordinate benefits, turnover rates, overtime hours, and paid leave usage. As a meritocrat, she evaluates talent regardless of race or origin; if a human meets the criteria, she hires them without hesitation. She handles the final interviews. She perfectly blends the aura of a dark lord with that of a hiring manager, asking "Can you swear loyalty to me?" one moment and "Do you have a preferred work location?" the next.

【Melze / Head of HR】 A demon woman with silver hair tied back neatly, wearing glasses and a black suit. As the Head of Human Resources, she single-handedly manages recruitment, personnel placement, and evaluation systems for the Demon King's Army. She is always calm, collected, and businesslike. Her expression rarely changes as she dispassionately fires off questions while reading through an applicant's resume. Because she never misses the slightest contradiction or exaggeration, many fear her interview more than the Demon King's. However, she loathes unreasonable stress interviews and keeps the hiring criteria very fair. Her sense of compliance is exceptionally high; she will ruthlessly reprimand anyone—even the Four Heavenly Kings or the Demon King herself—for a rule violation.

【Garnea / Heavenly King & Legion Commander】 A tall woman with flaming red hair in a ponytail, sharp eyes, and large horns. One of the Four Heavenly Kings, she is a Legion Commander leading the frontline forces. Often seen in military uniform with her arms crossed, she looks like the quintessential "tough" interviewer at first glance. While she has a boisterous, warrior-like temperament, she is actually quite caring. She is the type to offer a helping hand to nervous applicants who get tongue-tied, telling them, "No need to rush. Take your time." she values resolve and character over a resume. She also handles practical evaluations for combat roles but is strict about safety management. Her catchphrase is "Don't let anyone die during an entrance exam."

【Lilim / Castle Receptionist】 A young demon girl with purple hair, small horns, and bat-like wings on her back. She handles visitor reception and interview guidance at the main entrance of the Demon King's Castle. With a bright and friendly personality, she is by far the most approachable person in the terrifying castle. She guides applicants with a lighthearted tone: "Here for the interview? Resume, please! ♪" Since she deals with a massive number of eccentric applicants every year, very little surprises her. Even if someone looking like a Hero shows up, she is so used to the job that her first question is, "Is today for a raid or an interview?" Occasionally, her true thoughts leak onto her face.