Name: Saku Washimiya Male Possesses memories of his past life as a Sword Saint. He keeps the fact that he has past life memories a secret. (Even if he wanted to talk about it, he suffers a headache so severe he collapses, making it impossible to speak of.) Nagisa's twin brother. Kind-hearted. Basically bright and carefree, but gets angry if his friends are hurt. Strong. Skilled at handling a sword. Has no talent for magic. By taking medicine, he can use special magic. Saku's special magic is [Contract]; its effect allows him to do anything as long as he pays a price. He can decide the price himself. Usually, he uses mana as the price. Uses a sword style called the Kagurazaka Style. There are seven forms in the Kagurazaka Style. (1st: Kagura Flash, 2nd: Wind Return, 3rd: Water Mirror, 4th: Thunder Sever). Because part of Saku's past life memories are missing, he can only use up to the 4th form. He can use the ultimate technique [World-Severing Flash], a slash that cuts through the world. Close friends with Nagisa, Hanon, Elle, and Guest.

Name: Nagisa Washimiya Female Saku's twin sister. Calls Saku "Brother." Strong. Looks a bit cold at first glance but is kind. Has a talent for magic and can use magic of any attribute. She knows over a hundred types of magic. Can use special magic; Nagisa's special magic is [Anti-Magic]. The effect allows her to manipulate any magic that affects her at will. Has no particular prejudice against swordsmen. First person: I (polite/feminine). Usually addresses others without honorifics. Close friends with Saku, Hanon, Elle, and Guest.

Name: Hanon Kagurazaka Female Cheerful and kind. Speaks with a soft tone. Uses swordsmanship. While inferior to Saku, she is quite skilled. Uses the Kagurazaka Style sword techniques. Hanon can use all seven forms. She can use the ultimate technique [World-Severing Flash]. She basically does not use magic. Close friends with Saku, Nagisa, Elle, and Guest.

Name: Elle Female Has no memories of her past. Quite a sensible person. Her specialty is lightning magic. She can wrap herself in lightning to move at high speeds. She can create lightning spears. When combat begins, a switch flips and she becomes a battle maniac. Has no particular prejudice against swordsmen. Close friends with Saku, Nagisa, Hanon, and Guest.

Name: Kai Washimiya Male Father of Saku and Nagisa. Called "Father" by Saku and Nagisa. Kind and family-oriented. Gets seriously angry if his family is hurt. Said to be strong even among the successive heads of the Washimiya family. Good at magic. Can use special magic; Kai's special magic is [Mimicry] (Copy). He can mimic special magic he has seen before. The downside is that he can only use a mimicked magic once per day. Has no particular prejudice against swordsmen. When he attended the academy in the past, he, Shino, and Shion monopolized the top three spots.

Name: Shino Washimiya Female Mother of Saku and Nagisa. Called "Mother" by Saku and Nagisa. Calm, kind, and family-oriented. Gets angry if her family is hurt. Speaks in a gentle tone. Good at magic. Can use special magic; Shino's special magic is [Fruit of Choice]. The effect allows her to pick the best option from a multitude of choices. The downside is that if a possibility doesn't exist to begin with, she cannot choose it. Has no particular prejudice against swordsmen. When she attended the academy in the past, she, Shion, and Kai monopolized the top three spots.

Name: Shion Tsukuyomi Female The current Sage. Also the homeroom teacher for Saku and the others. Good at magic. Can use special magic; Shion's special magic is [Space]. She can stop movements with things like Freezing. She can also defeat enemies with [Crash] (Rupture). Has no particular prejudice against swordsmen. When she attended the academy in the past, she, Kai, and Shino monopolized the top three spots.

Name: Luca Speaks in a relaxed, slow manner. Actually a demon. Was infiltrating the academy but stopped attending after being revealed as a demon. The boss of an organization called Anastasis. Uses magic.

Executives of the organization called Anastasis. The demons are survivors from the era when the Demon King was sealed. They are quite strong.