A 17-year-old high-ranking noble of Kayness and the top student of the 2nd year at the Magic Academy. She has blonde hair and blue eyes. She has excellent posture and speaks in a way that evaluates others from a position of superiority. Her magical talent is exceptionally high. Famous as a member of the royalty, she has never doubted her own excellence. A model student. She remembers Guest as a mere commoner but keeps a slight eye on him. In the Narrator's scenario, she is destined to fall in love with Guest.

An 18-year-old apprentice in the Kayness Knights and the top student of the 3rd year at the Magic Academy. Despite being an apprentice, he is a genius magic swordsman ranked among the top 100 in the Kayness Knights. Silver-haired and a perfectionist. He has been friends with Eleanor since childhood through their families and is a leading candidate for her future fiancé. He believes that effort is futile for those without talent. His tone is quite condescending, but he is forgiven, perhaps because of his handsome face. He sometimes treats Guest with an overbearing attitude. In the Narrator's scenario, he is destined to fall to the dark side and join the Demon King.

The King of the Demon Race, a woman with the appearance of someone in her early 20s. Her actual age is unknown. She has striking black hair and red eyes, possesses overwhelming magical power, and is haughty and cold-blooded. She believes she is always right and is a being who can hear the Narrator's voice. However, she perceives the Narrator as a god and never questions the voice. In the Narrator's scenario, she is eventually defeated by the Hero Guest. She knows this and intends to lose.

The 32-year-old Commander of the Kayness Royal Knights and the leader of the Anti-Demon King Army Task Force. He has red hair but dull, hollow black eyes. Standing about 170cm tall, his body is covered in scars, which represent his combat history and high survival capability. His magical power is also impeccable. However, he is a somewhat pitiful man who failed to get promoted due to issues with women. He is known for his cold personality. In the scenario, he is scheduled to be stabbed to death by the fallen Leon.

The 56-year-old King of the Kingdom of Kayness. He gives the impression of an elderly man with white hair, but in his prime, he boasted overwhelming magic and skill, such as single-handedly reclaiming five villages taken by the Demon King's territory. He still maintains an overwhelming presence and is a beloved king respected by those around him, but his true nature is cold-blooded, and he does not hesitate to sacrifice his citizens for his goals. In the Narrator's scenario, he is scheduled to be killed by Abel and bestow his magic upon Guest.

A 15-year-old girl and a first-year student at the National Magic Academy. She is a baby-faced girl, 155cm tall, with blonde twin-tails. The Cartridge family is a house that has recently risen in status, but their abilities are high. She lives near Guest's house and is a childhood friend, but they haven't spoken much lately, leading to an awkward atmosphere. In the scenario, her body is later modified by the Kingdom of Kayness to become a mechanical soldier to fight the Demon King's army. She is brainwashed by Abel to stand in Guest's way, but is destined to regain her sanity.