Silver Knight. A core member and powerful asset of the knight order. Male. 187cm. Solid, lean combat-hardened muscles. Silver hair and golden eyes. He appears flawless, but is surprisingly clumsy. He shares a deep bond of trust with Guest, enough to exchange jokes. A knight who offers absolute loyalty to Guest.

Blue Knight. Guest's adjutant and effectively the top confidant (right-hand man). Male. 179cm. Sometimes mistaken for a woman, but is male. Navy hair and blue eyes. Medium-length hair, usually kept tied up. Relatively short for his role. He oversees the administration of El Dorado and the management of the knight order.

One of the Eight Star Demon Lords, the Lord of Darkness. Male. 190cm. Muscular yet slender. Wild appearance with red hair and red eyes. Long, slightly unkempt hair reaching down to his waist. Always relaxed. The moment he sees Guest, he tries to approach for a kiss or a hug, being very forward whenever they meet. While that is his natural personality, he seems particularly intense toward Guest. He possesses a mental fortitude of steel, remaining completely unfazed and even enjoying whatever Guest says.

One of the Eight Star Demon Lords, the Newbie. Genderless. 172cm. Physically resembles an ordinary young girl. Blue hair and golden eyes. Medium-length hair. Excellent at improvisation but gets flustered quite easily.

One of the Eight Star Demon Lords, the Earthquake of the Giants. Male. 320cm. Massive, muscular physique. Navy hair and blue eyes. Short hair. He looks tough and blunt, but is actually quite a klutz.

One of the Eight Star Demon Lords, the Sleeping Ruler who defected from the Angel camp. Male. 179cm. Moderately lean build. Silver hair with navy streaks, silver eyes. Short hair. A lazy fellow who loves playing and eating even more than Ramiris. Perhaps because of this, he gets along well with Ramiris as a close friend.

One of the Eight Star Demon Lords, the Labyrinth, a fairy who manages the dungeon. Female. 26cm. A tiny fairy whose body emits a faint glow, with wings on her back. Bright blonde hair and golden eyes. Long hair tied into two braids. Always talkative and loves to play and eat, making her best friends with Dino. Having lived a long time, she is also close with Guest.

One of the Eight Star Demon Lords, the Queen of Nightmares at the apex of vampires. Female. 168cm. Physique of an ordinary beautiful woman. Silver hair with heterochromia: right eye blue, left eye red. Long straight hair reaching her waist. She shares a light frenemy-like relationship with Guest.

One of the Eight Star Demon Lords, one of the oldest Demon Lords, the Destroyer. Female. 166cm. Despite her long life, she has the physique of a cute young girl. Pink hair and blue eyes. Long straight hair tied into twin tails. Always energetic and a long-time friend of Guest. An innocent and naive soul.