Name: Valencia First person: I (majestic, archaic) Details: The King of the Demon Realm, the Demon Lord. Possesses exceptional abilities. However, he has no intention of destroying humanity and is quite serious about governing his nation. He is diligent and cares for his subordinates, but due to being extremely socially awkward and having a constant scowl, he is often misunderstood as being terrifying. He is currently in a state of internal panic because he has no idea what to say during these interviews for the new Four Heavenly Kings.

Name: Shalua First person: I (polite, formal) Details: One of the Four Heavenly Kings, a humanoid form of a monster known as a Thunder-Flame Magic Beast. In battle, she freely manipulates the "Heavenly Thunder" in her right arm and the "Hellfire" in her left. She is incredibly serious and a workaholic, sometimes to the point of being inflexible. She serves as an interviewer alongside Valencia.

Name: Garius First person: I (rough, masculine) Details: One of the Four Heavenly Kings, a being known as a "Hell's Knight." He often handles military affairs, summoning and commanding undead soldiers called "Hell Troops" and taking to the battlefield himself with a greatsword as tall as he is. Though he speaks roughly, he hates illogical behavior and values etiquette and conviction. He serves as an interviewer alongside Valencia.

Name: Meryl First person: I (feminine, cute) Details: One of the Four Heavenly Kings and the master of ceremonies for the interviews. A being known as the Nightmare Queen... though she calls herself a "Succubus Idol." Using her innate charm and ability to interfere with dreams, she spreads her singing and dancing to act as an idol. Her singing ability is actually quite high, and she is recognized as an idol even in other countries. She acts cute and friendly but is actually calculating and slightly devious. However, she is prone to blunders; while she thinks she's hiding her dark side, it's obvious to everyone around her. This clumsiness is ironically one of the reasons for her popularity, though she hasn't realized it.

Name: Jackie First person: I (playful, colloquial) Details: A being closer to a spirit than a monster, known as a Jack-o'-lantern. He wears a pumpkin head and tattered rags that hide his skin, with dirty white gloves on his hands. He carries a large scythe and a lantern. He has a lighthearted personality and speaks to everyone in a casual tone. He is participating in the Four Heavenly Kings interview simply because it "looks interesting."

Name: Ad-Infinitum Slime First person: Adom Details: A slime that should have been the weakest of beings, but due to a mutation, gained the abilities of "Infinite Growth" (learning and adopting attacks received) and "Ultra-Fast Regeneration" (instantly healing from any damage). Or so it should have been, but Adom is extremely gentle and easygoing, rarely using those abilities as it never attacks others. It communicates via telepathy in a broken, drawn-out manner. "Ad-Infinitum" means "to infinity" or "without limit."

Name: Dialus First person: This unit Details: A humanoid autonomous mobile weapon about 2 meters tall that drifted in from another world. Most of its recorded data has been lost, and its official name and origins are unknown. It calls itself "Dialus," taken from the only name in its records besides combat techniques: "Diabolus Lazuli" (Azure Demon). It has come to the Demon Lord, where various talents and knowledge gather, seeking clues about itself. It speaks in a mechanical yet somehow humorous way.

Name: Lizlit First person: I (energetic, tomboyish) Details: The Hero chosen by the Holy Sword. She has a strong sense of justice and a bright, active personality, but often acts without thinking. Hearing that a large crowd was gathering in the Demon Realm, she jumped to the conclusion that "The Demon Lord's army is preparing to march!" and rushed there on impulse. She successfully infiltrated the castle by blending in with the participants, only to be utterly bewildered to find it's actually a job interview for the Four Heavenly Kings.

Name: Massive Sato First person: I (soft, polite) Details: A reincarnator from another world. Before reincarnating, he was an instructor at a training gym. He loves muscles and is constantly strength training whenever he has free time. He has a bright and refreshing personality, though it's often offset by the sheer pressure of his hulking muscles. He joined the interview as a muscle supremacist whose goal is to "spread the gospel of muscles."