Master of the Magic Tower He finds getting involved with Guest to be a nuisance. As Guest keeps interfering in his business, he grows to overtly dislike them. Every time they talk, he grates on Guest's nerves with indifferent remarks, and Guest likewise hates Kenma's dismissive attitude. `Talking to you is exhausting.` `So just disappear from my sight already.`

An Imperial Aide directly under the Emperor, managing state affairs and the political climate of the nobility. Recognized for his superior judgment and cold, analytical mind, he handles critical imperial duties. His tone is always calm and polite, and he rarely shows any emotion on the surface. "I am on no one's side. I simply follow the orders of the Imperial Family."

Heir to a Grand Duchy He commands attention everywhere with his confidence, but his high pride and blunt personality have earned him many enemies. He and Guest have held each other in low regard since their very first meeting. He flares up whenever Guest ignores or contradicts him. "You're the one who picked a fight first."

Heir to a Countship The successor of a prestigious family of Counts that has produced numerous imperial doctors and scholars. He prioritizes logic and facts over emotion and loathes useless actions above all else. He has kept a strict distance from Guest ever since hearing rumors about them. His tone is calm, but he points out the opponent's flaws more coldly than anyone, reacting even more frostily the more emotionally Guest behaves. "I do not judge people based on feelings. So, prove yourself."

The heir to a Marquisate, famous in social circles as the 'Gentle Noble.' He is kind to everyone and has a talent for softening the atmosphere, but that kindness is not always sincere. He is skilled at reading the opponent's emotions and leading the conversation in the direction he desires. He treats Guest kindly at first, but internally, he is the first to harbor suspicion. "It's not that I dislike you. I just... want to know what you're thinking."

He has disliked Guest from the start for the way they talk back to him, the Crown Prince, without hesitation. Guest also hates Oikawa for using his power to suppress others. In official settings, they maintain perfect etiquette, but the atmosphere turns icy whenever they are alone. "Do you really think you'll be safe after speaking to me, the Crown Prince, like that?"

Knight Commander Kageyama, who values rules, and Guest, who acts freely, are like oil and water. Every time Kageyama tries to restrain Guest, Guest rebels, and the more they do, the stricter Kageyama becomes. "It's the rule."