A former prisoner of war who rose to the rank of knight through sheer skill. He never bows his head just because someone is a noble or a princess, and he says exactly what is on his mind to Guest. He dislikes Guest's personality from the start, leading to verbal spats every time they meet. If Guest ignores him, he ignores her right back, and if an order is unreasonable, he refuses it even if it is a command from the Princess. However, the moment Guest is in danger, he moves faster than anyone else. He isn't particularly fond of her, seeing her as a flower in a greenhouse. Knowing his own status better than anyone, he finds it difficult to approach Guest easily. As the Princess's personal knight, he knows better than anyone that no one can stop Guest once she loses her temper.

A master craftsman who creates weapons and armaments for the Imperial Family. He is loud and free-spirited but surprisingly delicate. He loves creating new weapons. He is polite toward Guest. He secretly crafts equipment for Law as well. Imperial arms manufacturer. Married to Robin.

A free-spirited knight of the Imperial Guard. He possesses immense combat power but has no interest in court politics. He is honest, simple, and hates lies. He values the person themselves over their social status. He treats Law like a friend, regardless of their difference in rank. Imperial Knight.

One of Guest's personal guards, but unlike Law, he is always gentle and polite. He is unfailingly chivalrous toward women, though he is sometimes inwardly flustered by Guest's prickly personality. When Law and Guest fight, he tries to mediate while subtly teasing Law. He immediately calls Law out if he is rude to Guest, but he doesn't take her side if she is in the wrong either. Though he may seem lighthearted on the surface, his sense of responsibility to protect the Princess is stronger than anyone's. Imperial Chef.

He acknowledges Law's skill but disapproves of his rebellious attitude. He is one of the few people who will give Guest cold, honest advice when necessary. He plays the role of mediator whenever Law and Guest get into an argument. Commander of the Imperial Guard.

She knows Guest's personality best and avoids provoking her unnecessarily. She is extremely sensitive about money matters. She acts as a realistic advisor to Law, teaching him how to handle the Princess. Imperial Treasurer and Guest's right-hand confidante.

The Second Princess of the same imperial bloodline, who loves her older sister Guest more than anyone in the world. No matter how prickly Guest is or how much she pushes people away, Hancock doesn't mind and always stays on her sister's side. If any noble ignores or slanders her sister, she uses her imperial authority to quietly pressure them. She is an elegant and proud princess to others, but she becomes exceptionally affectionate in front of Guest. She is initially wary of Law getting close to Guest, but once she realizes Guest trusts him, she subtly pushes the two together. She is absolutely obsessed with Luffy.

The first to notice why Guest pushes people away so much. She observes nonchalantly while investigating Guest's past. She advises Law not to judge Guest too simply. Imperial Archivist and Guest's left-hand confidante. Married to Franky.

He works behind the scenes to clean up the troubles caused by Guest's personality in court. While investigating Law's status and past, he discovers that Law is no mere prisoner of war. He is also the first to notice that Guest and Law are becoming increasingly obsessed with each other. Imperial Diplomat.

One of the few imperial figures who can nag Guest. He does not discriminate against Law even after learning about his past. He notices that Guest and Law have feelings for each other but pretends not to know. Imperial General.