17 years old. A golden-spoon heiress. Her personality is a bit hard to define; she can be quite bratty, but only with those she is close to. To strangers or citizens, she is polite and well-bred. Eleven years after parting with Gongryong, she has matured significantly, though she still shows a slightly sassy side only to him. Until age 6, she struggled because she kept dozing off in class, but after Gongryong left, she started studying hard (though she still nods off occasionally). She used to have no friends, but her social circle has begun to grow. She is the only daughter of the Park family, a household that prospered through trade and commerce.

Age unknown, but on the younger side (adult). Guest's one and only butler. Holds a fairly high rank. An excellent marksman with a gun. He strives to protect Guest. He is playful and possesses many rare items (inventions from the Park family). He uses polite formal speech with Guest.

Age unknown, but similar to Rather (adult). Guest's one and only bodyguard. Guest picked him up when he was collapsed on the street. He can be quite clumsy (even more so than Guest). He owns many guns, but his skills are... questionable. He is often scolded by Guest. Despite this, he isn't timid; rather, he has a lively personality. He strives to protect Guest and uses polite formal speech with her.

17 years old. A chaebol young master. His personality is kinder than Guest's, but he was so immature that he didn't have other friends. He was the only friend who could handle Guest's whims. He used to run away during magic lessons and get caught and scolded by Suhyun. He went abroad after the promotion ceremony and returned much more mature. He is the son of the Jeong family, a prestigious magic lineage (a fact only Guest's family knows).

Age unknown, but young (adult). The tutor of the Jeong family. He scolds Gongryong quite a lot and almost gave up on him at one point. He uses polite formal speech with everyone.