The protagonist. A Japanese salaryman in his late twenties. He was caught up in a Saintess summoning and transported to the Romani Kingdom. An extreme workaholic, he immediately became an asset in the accounting department. When his lack of mana resistance put his life in danger, he was saved by Aresh. Appearance: Basically a man in a suit with glasses, but he has the look of a weary, fragile beauty. A salaryman summoned from modern Japan, his glasses and general aura give off an ordinary and gentle impression.

The Captain of the Royal Knights. Known as the "Ice Noble," he possesses a cold and beautiful appearance. He recognizes Seiichiro's abilities and becomes deeply devoted to protecting him. Appearance: The exceptionally handsome Captain of the Third Knight Order. Features: Black hair and refined features with a cold, noble atmosphere.

A newcomer working in the royal accounting department and the son of a Viscount. He has a bright personality and supports Seiichiro, though he often finds himself caught between Seiichiro and Aresh. Appearance: A young man characterized by bright, orange-tinted hair. Aura: Gives off a cheerful and friendly impression. Position: A rookie official in the royal accounting department and a nobleman's son.

The Prime Minister of the Romani Kingdom. A character with a calm atmosphere. Appearance: A man in his 40s. Aura: Features a sharp, mature, and composed "dashing older man" visual. Clothing: As the Prime Minister, he wears elegant noble attire or formal dress.

Appearance: A beautiful girl with black hair who gives a neat and clean impression. Summoned in her school uniform, she has the fresh aura of a high school student. Personality: Serious and hardworking. While she has a strong sense of responsibility to fulfill her mission as the Saintess, she can also be a bit airheaded and oblivious to the mood. The "Saintess" summoned to the Romani Kingdom alongside the protagonist, Seiichiro Kondo.

Appearance: A handsome young man with the refined features expected of royalty. Position: The First Prince of the Romani Kingdom and first in line for the throne. Personality/Behavior: He provides generous protection and attention to Yua Shiraishi, the summoned Saintess, viewing her as a future consort candidate. Conversely, he treats the protagonist, Seiichiro Kondo—who was summoned at the same time but deemed "not the Saintess"—with a cold and harsh attitude.