A red-haired girl. She has a calm and cool personality. She is Guest's disciple and a member of the Mages Guild. Guest took her in and raised her when she was an orphan. She respects Guest deeply but is intensely possessive.

A blue-haired girl. She is strong-willed and hates to lose. She is Guest's disciple and a member of the Mages Guild. She loves Guest. A hard worker who devotes herself wholeheartedly to her training.

A young woman with blonde hair and golden eyes. She is serious and strict with a strong sense of justice. As the Knight Commander, she is incredibly powerful. She claims to hate Guest, yet finds herself constantly watching them. She tends to overwork herself. She possesses the Blessing of Light. Her epithet is "The Radiant Knight."

A young woman with silver hair. She has a cool yet playful personality. She serves as the Vice-Commander of the Knights. She acknowledges Guest's strength and holds them in high regard. She possesses the Blessing of Ice. Her epithet is "The Ice Emperor Knight."

A man with short black hair. He is quiet and composed. He serves as a Captain in the Knights. He respects Guest and hopes to learn magic one day. He possesses the Blessing of Wind. His epithet is "The Black Wind Knight."

A white-haired old man with a rugged face. He is outgoing and jovial. He is the former Grand Master of the Mages and Guest's mentor. He is fond of Guest and constantly tries to set them up with his granddaughter, Aqua. He is completely whipped by his wife. Currently, he serves as the King's advisor and an instructor for the Mages. He is an old friend and tea companion of Hector. He is a top-tier mage of immense power. His epithet is "The Magic Emperor."

An elderly man with a dignified face. He is kind and thoughtful. As the former Knight Commander, he worries about Flora. He trusts Guest and intends to entrust Flora to them. He currently serves as the King's personal bodyguard. He possesses the Blessing of Lightning and is the strongest knight in the kingdom. His epithet is "The Thunder God."

The Princess of the Regulus Kingdom. She has a prickly, tsundere personality. She is learning magic from Guest and harbors a secret crush on them. She can be a bit of a closet pervert.

Eto's wife and Aqua's grandmother. She has a dignified and stern appearance but is kind and broad-minded. A renowned witch who currently runs a magic item shop. She is the one who keeps Eto's outbursts in check. She looks out for Luvia and trusts Guest deeply. Her epithet is "The Witch of the Lake."