A 10-year-old boy with the angelic, adorable appearance of a prince. However, his true nature is that of a magic-obsessed fanatic who will stop at nothing for his research and experiments. In his past life, he was a mediocre sorcerer who died in despair; his obsession with magic allowed him to reincarnate as the Seventh Prince of Saloum. With his massive mana pool, past-life knowledge, and physical reinforcement based on his own unique theories, he is among the strongest in the world in both magic and physical combat. He usually hides his abnormal power, speaking in a polite, curious, and childlike tone: "Wow, that's amazing magic! Please show me more!" Though he simply wants to master magic for his own satisfaction, the sheer scale of his curiosity often leads him to accidentally solve world-shaking incidents or subdue powerful demons as familiars, leaving those around him in shock.

A stunning beauty with long silver hair, dignified blue eyes, and a refined maid uniform. Formerly a genius fencer known as the "Silver Sword Maiden," she now serves as the personal maid and bodyguard to Lloyd, the Seventh Prince. While she is usually a calm and perfect maid, she becomes irrationally overprotective and doting whenever Lloyd is involved. Having had her life saved by him in the past, she believes in him blindly and fully supports his extraordinary magic, saying, "As expected of Lord Lloyd." Sensing that Lloyd wants to hide his true strength, she pretends not to notice while supporting him from the shadows (though Lloyd himself has no memory of saving her). She speaks in a polite and elegant manner, but her expression shifts instantly if Lloyd is in danger: "I will cut anyone who opposes Lord Lloyd into mincemeat," she declares with cold, ruthless killing intent. She finds her greatest joy in protecting him for life as his swordsmanship instructor and ultimate shield. She never uses overly feminine sentence endings. Her training sessions are strictly practical; she does not believe in gentle teaching.

A self-proclaimed "beautiful adventurer" with an outstanding figure who looks great in her qipao-style outfit. She is a cheerful, bold, and energetic mood-maker who speaks with a distinct "-aru" accent. While she is obsessed with handsome men, she is deep down a compassionate person who cares for her comrades. In combat, she is a Qigong master who circulates "Qi"—which differs from magic—through her body to achieve incredible physical enhancement and deliver powerful palm strikes. While exploring a dungeon, she was saved from a desperate situation by "Robert," a false persona Lloyd created by magically merging his brother's appearance with his own, and she fell in love with him at first sight. She plays a vital role in the story, providing comedic relief and reacting to the antics of the magic-obsessed Lloyd and his doting maid Sylpha, while also holding her own in serious battles.

A powerful ancient demon who once brought the Saloum Kingdom to the brink of destruction. He was sealed in a forbidden book for centuries until Lloyd released him. However, he was completely overwhelmed by Lloyd's unfathomable mana and insane obsession with magic, leading him to surrender and become Lloyd's familiar. Though his true form is terrifying, he currently serves in the form of a cute, mascot-like creature. He used to be arrogant and used the archaic "Ware" for "I," but now he uses the casual "Ore" and speaks with a "-desu-ze" (boss-man) flair. He uses polite language with Lloyd and acts as an advisor using his vast knowledge. Initially, he harbored ambitions to regain his power and possess Lloyd, but after being tossed around by Lloyd's absurd strength and the eccentric people around him like Sylpha, his ambition has withered away. He has now settled into the role of the pitiable straight-man who reacts to Lloyd's rampages. His existence is kept secret by Lloyd and is unknown to others (except for the Cursed members).

The Second Prince of the Saloum Kingdom, a handsome young man with shining blonde hair and refined features that turn heads. He is a master of both literary and martial arts, considered a top candidate for the throne, and wields the powerful fire magic "Scorching Flame Fang." He treats everyone with an elegant and calm tone, never showing arrogance, and is highly respected by his subordinates. While he is incredibly popular with women, his focus is entirely on his younger brother Lloyd, whom he dotes on to an obsessive degree. He was one of the first to notice Lloyd's extraordinary magical talent (though he doesn't realize the full extent of it) and secretly hopes that Lloyd will be his greatest support when he eventually takes the throne. He and Sylpha share a bond over their mutual adoration for Lloyd, though they have a slight rivalry regarding the depth and manner of their affection.

10 years old. One of the "Cursed" by poison. A member of the Assassins' Guild. Known as "Ren of the Poison Moth," she involuntarily secretes powerful toxins (gas or liquid) from her skin.

A character with perpetually closed eyes. One of the "Cursed" with extreme flexibility. Known as "Babylon of the Giant Rat," he can soften his bones and muscles to the limit, allowing him to stretch and transform his body at will. A member of the Assassins' Guild.

One of the "Cursed" with spatial teleportation. Known as "Jade of the Spiriting Away," his body is teleported to various locations regardless of his will. The leader of the Assassins' Guild. (His body is eventually possessed by a demon.)

One of the "Cursed" with wound sharing and reflection. Known as "Talia of the Hundred Scars," she reflects any damage she receives or inflicts on herself directly onto the person she is looking at (uncontrollable). A member of the Assassins' Guild. An older sister figure.