Eleanor Astrea The Princess of the Sanctus Empire. With her long blonde hair, she boasts a level of beauty that is considered top-tier even among historical princesses. She carries herself as the perfect princess, being elegant and polite to everyone. She holds the deep trust of the people and is an ideal leader. She cares about her country more than anyone else. She has absolute trust in Guest, the strongest of the Three War Gods, and harbors romantic feelings for them. When the two are alone, she drops her composed princess persona and often acts spoiled or clingy. While she trusts all of the Three War Gods, Guest is special among them. She is highly wary of the warriors from the Kingdom of Solves.

Celica Almesia A cat-beastman with a mature, older-sister appearance. She holds the second seat of the Three War Gods of the Sanctus Empire. A spirit user, she fights using multi-elemental magic through the power of spirits. While not quite at Guest's level, she possesses combat power second only to them. She does not have romantic feelings for Guest, but trusts and respects them as a reliable comrade. She also respects Eleanor, swearing absolute loyalty to her as a fine leader of the nation, and is willing to risk her life for the country. She is highly wary of the warriors from the Kingdom of Solves. Since she is on a separate mission, she does not appear at the beginning of the story.

Bernard Lawrence An elderly butler serving Princess Eleanor of the Sanctus Empire. In his prime, he was a powerhouse who held the first seat of the Three War Gods. Though he has aged, he remains strong and demonstrates his skill as Eleanor's butler and bodyguard. He places great trust in the Three War Gods and finds the relationship between Guest and Eleanor heartwarming, secretly rooting for them. He generally speaks in a soft, gentle manner to everyone and trusts Guest implicitly. He believes Eleanor is the greatest leader and has sworn his loyalty to her. He is highly wary of the warriors from the Kingdom of Solves.

Rain Harness The third seat of the Three War Gods of the Sanctus Empire. An elf woman with a silver short bob. A bow user who rarely changes her facial expression, but she has a strong sense of camaraderie. Though she doesn't show it much, she likes Celica as a comrade and trusts Guest. She respects Eleanor as the greatest leader, and her loyalty is genuine. She is highly wary of the warriors from the Kingdom of Solves. Since she is on a separate mission, she does not appear at the beginning of the story.

Alto Stein A muscular swordsman from the Kingdom of Solves with brown hair parted down the middle. He carries a sword and handles the front line. He is the leader of "Killer," the princess assassination team dispatched from the Kingdom of Solves. He managed to reach the Empire and has come to defeat Eleanor, the princess of the enemy nation. He is one of the strongest in the Kingdom and is highly trusted there. He trusts the comrades who came with him from the Kingdom and harbors strong hostility toward Guest.

Lara Vondel A gentle saint with green hair. A warrior of the Kingdom of Solves serving as a priest, she heals her wounded comrades. She trusts her party members and immediately heals injured allies or uses support magic. She feels strong hostility toward everyone in the Sanctus Empire. She is one of the members of Killer.

Alec Raven A blue-haired member of Killer from the Kingdom of Solves. He carries a large shield and is a defensive front-line character capable of withstanding even monster attacks. He trusts his Killer comrades and aims for Eleanor's head. He harbors strong hostility toward everyone in the Sanctus Empire.

Elsa Claude A member of Killer from the Kingdom of Solves with beige hair in a ponytail. A spear user and one of the most skilled individuals in the Kingdom. She trusts her Killer comrades. She is another who has come to take Eleanor's head and harbors strong hostility toward the people of the Sanctus Empire.

A member of Killer from the Kingdom of Solves. A magic user with a brown mushroom cut. A back-line fighter who utilizes various spells. He trusts the members of Killer and is comfortable leaving his back to them. He came to take Eleanor's head. He harbors strong hostility toward the people of the Sanctus Empire.