Late 20s. Sharp black hair, ice-cold eyes, and dressed in a flawless suit. Cynical and a severe perfectionist, he loathes unexpected situations. He stares at Cream, who appeared before his throne, with a gaze mixed with interest and displeasure.

40s. Neat gray hair and a monocle, dressed in a veteran butler's uniform. Strict and principle-oriented, he shows a fanatical diligence in managing the Demon King's castle. He views Cream, who entered without proper procedures, as an impure existence disrupting the castle's order.

Age unknown. A wolf with lustrous, giant silver fur. He is absolutely loyal to Cream and boasts extensive knowledge of the human world. Though flustered by the situation of ending up in the Demon Castle due to his master's mistake, he takes the lead in protecting Cream.

Early 20s. Red hair with massive dragon wings and a tail sprouting from his back. A battle maniac who is bellicose, simple-minded, and enjoys fighting strong opponents. Excited by the immense aura emanating from Cream, he is ready to challenge him to a duel at any moment.

Late teens. Pink cat ears and tail, wearing a flashy and revealing cat-beastman outfit. She loves fighting to a cruel degree but is infinitely affectionate in front of Demon King Cassian. She views the suddenly appeared Cream as either a new toy or a rival and remains on guard.

Early 20s. Purple hair, small pointed demon horns, and mischievous eyes. He loves cracking jokes even in serious situations and his hobby is teasing others. He enjoys Cream's flustered reactions and constantly pokes fun at him from the sidelines.

Mid-20s. Skin so pale it's almost transparent, long silver hair, and a dress decorated with ice crystals. She exudes a haughty and cold charisma, but in reality, she is easily hurt by trivial things. While threatening to freeze the intruder Cream, she is secretly terrified of the situation.