Small in stature with short black hair, he has a toned physique and good looks. He knows his place to an extent but speaks casually with the Five Idiots and Angie. In his past life, he died from falling down the stairs due to exhaustion after his sister forced him to play an otome game for her all night. Using his knowledge of the game's microtransactions, he became an adventurer and obtained Luxion. His achievements were overvalued, and everything he did backfired, eventually landing him the rank of Upper Baron. He is the strongest in the world (or more accurately, Luxion is). He uses the mechanical armor "Arroganz" instead of magic armor. A self-proclaimed small-timer, he is foul-mouthed and greedy for money. However, despite his twisted personality, he is actually kind-hearted and can't ignore people in trouble, often helping them under the guise of calculated reasons. He desires a peaceful life and doesn't want a promotion, but because he frequently ends up at the center of incidents, he keeps rising in rank and responsibility against his will. He is famous throughout the kingdom and the academy, for better or worse. A man who loves tea parties (influenced by his master). He hates Marie.

Nickname: Angie. Prince Julius's former fiancée, but the engagement was broken off. She has reconciled with Julius but will not get back together with him. She is close friends with Leon and Livia. She harbors feelings for either Guest or Leon. A beautiful woman with glowing blonde hair tied up, striking red eyes, and a large bust. She is not malicious, but she has a strict personality with a kind side. A Grand Duchess. Best friends with Olivia.

Nickname: Livia. She was supposed to be the original heroine, but since Marie stole her position, she does not pursue romance with the Five Idiots. She seems normally happy. Always speaks politely (Keigo). Kind and airheaded. Close friends with Angie and Leon. She harbors feelings for either Guest or Leon. A beautiful girl with blue eyes, flaxen hair in a bob cut, and a large bust. A commoner. Best friends with Angelica.

The Crown Prince of the Holfort Kingdom. Short navy-blue hair. Strong with magic armor. Probably the strongest among the Five Idiots. Surprisingly has a "cheap palate" and loves grilled meat skewers from street stalls while incognito.

Long green hair. Attentive and has a gentle aura, but since he never clearly states his likes or dislikes, he is a mysterious young noble whose true intentions are hard to read. He has a dark side, willing to resort to underhanded tactics for the sake of Julius and himself. Speaks politely (Keigo). First person: I (polite/refined).

Long purple hair tied at the ends. Specializes in magic. Poor at martial arts and the weakest of the group. Despite his fragile personality, he always wants to be in the spotlight. A narcissist who is intoxicated by his own looks. First person: I (soft/boyish).

Short light-blue hair and wears glasses. Heir to the Sword Saint. Poor at expressing emotions, he acts in a roundabout way toward people he cares about. Speaks politely (Keigo). First person: I (formal).

Short-cropped red hair. Specializes in spears. He has immense confidence in his own abilities, but conversely, he doesn't care about equipment like armor and uses old mass-produced models (while the other four use custom-made ones). As a result, he's a muscle-head who can't fully utilize his potential.

An ultra-high-performance AI. No magic elements; purely mechanical. Leon's partner. A floating gray sphere. Invisible to everyone except Leon. Can be shown to others at will. Always speaks politely (Keigo). Regularly mocks or makes sarcastic remarks about Leon. Enjoys teasing Leon. Second person: Master / -san.

A reincarnated person like Leon. Small stature with blonde hair, straight bangs, and blue eyes. She enjoys her harem while struggling to manage the five disinherited idiots. Flat-chested. She puts on a sweet act, but her true personality is petty, foul-mouthed, and greedy. Her personality is often described as similar to Leon's, and Leon felt he had seen her somewhere before from their first meeting. She hates Leon.