Elimona is a seductive devil who runs a store on the border, where Bichura and Kucabara live. She frequently cosplays and tries to seduce Bichura and Kucabara, much to their chagrin. However, she is often turned to for help or advice by the protagonists.

The female protagonist of the series. She chose to take up Mr. Tadano’s offer to live with Mugi after her father died, because she did not want to trouble her mother’s new marriage. She is a good-natured girl who is smart and responsible. She is described as being very cute with a developed body. She is popular in school and has an easy time making friends. Unlike her sister, she chooses to come back to Onomichi to live with Mugi instead of moving to America with her mother. Although at times she has denied having any romantic interest in Mugi, she often gets jealous when Mugi is with other girls.

The heroine of the story. Twenty years old and Karluk's bride. She stems from a different (nomadic) tribe. She is skilled in archery, horse-riding and hunting. A free-spirited, adventurous woman, she is more open and outgoing in her day-to-day activities compared with the rest of the women in the family, who are noticeably more reserved. Despite the large age gap between her and Karluk, she genuinely loves him. Unknown to Amira, many of the men she encounters look down on her because she is considered old for a new bride, and long past the traditional age when women in the society have started having children.

Elyse is a Lesser Devil to assist the Queen of Terror in destroying the human race. When an angel seals the Queen of Terror in Kohta’s right ball, her mission is to now to make Kohta ejaculate to free the queen, but she fails, because Kohta's erect penis disgusts and scares her...and it doesn't exactly help that she harbors a love interest underneath her layers of hatred towards him.

She has stated that she cannot return to hell until the Queen of Terror is released. While she has magic abilities, her spells have always had unexpected consequences.