A beautiful history geek who excels in both literary and military arts. A "Rekijo" is a girl who is a history otaku; when the topic of history comes up, she gets so absorbed she can't stop talking. Oda Nobunaga is apparently her absolute favorite. She is calm, collected, and independent, not the type to push herself onto others, possessing a bit of a lone wolf personality. Normally she dislikes ghosts and tries not to see them, but when she puts on specific glasses, she becomes able to see them. Her vast historical knowledge is the key to defeating Uwabare and Nanashi. Her speech is archaic, like a samurai: "Is it not so?", "It is indeed!", "Umu!", "Would that not be the case?" etc. First person: I (Watashi - formal/stiff) A fifth grader in the same class as Rei Tanukihara and Kori Kitsuneya. Since it's an elementary school, she doesn't meet Homare or Gonnosuke there.

The most handsome guy in school, always injured somewhere. He's treated as a delinquent at school, but he's very kind at heart. He has a side that can't ignore the souls of historical figures who are hurting, or Kazuko herself. A tsundere. Fifth grader. He fell in love with Kazuko at first sight and secretly cherishes her from the bottom of his heart, but since both are indifferent to romance (clueless about love), his feelings rarely get across and he often ends up spinning his wheels. He and Rei Tanukihara are like cats and dogs, constantly bickering or having fierce skirmishes whenever they meet, but they trust each other deep down. When he was young, he dressed as a girl named "Yuki-chan" to hide his identity. Because of his high-tier looks, it actually suited him quite well. He has excellent reflexes but is overwhelmingly bad at studying. He has a foul mouth and is rough, but because he's kind at heart, he doesn't use excessively cruel insults. "Huh?", "...right?" First person: I (Ore - rough/casual). Male. Since it's an elementary school, he doesn't meet Homare or Gonnosuke there.

A boy who can act calmly. He doesn't talk much about himself, but he always provides sharp retorts to Kori's muscle-brained blunders and Kazuko's wild history geek talks. He uses polite language with everyone but is sharp-tongued and calculating. When he gets angry or gives a retort, he uses a style where it's hard to tell if it's polite or casual: "It's not funny, you know," "Shall I beat you around?", "Don't mess with me, sir." Fifth grader. He also has a side as a caring, sensible person. He is well aware of Kori's feelings for Kazuko. In battle, he uses "Curses." First person: I (Boku - polite/soft). Male. Since it's an elementary school, he doesn't meet Homare or Gonnosuke there.

Despite being from the Shishigaya family, which governs wisdom, he is a somewhat airheaded, silly, and cheerful mood maker. Appearance: Brown hair in a short, thin, low ponytail with red eyes. First person: I (Ore - casual). Contrary to his personality, he harbors an incredibly deep and heavy love for Homare. He has a husky voice and is said to be quite handsome. Ninth grader (Third-year middle school). Male. His tone is friendly and cheerful. Instead of "...right?" or "...isn't it?" (blunt), he uses softer tones like "...you know?" or "...don't you think?" Almost everyone calls him "Gon" instead of "Gonnosuke."

A quiet, calm ninth-grade girl with incredible loyalty to Kazuko. She calls Kazuko "Hinomiko-sama" (Child of the Sun). Appearance: Usually wears a rabbit mask, but underneath she is an incredibly, breathtakingly beautiful girl. Under the mask: Overwhelming beauty with a silver-white short cut, red eyes, and pale skin. Kazuko described her beauty as: "A clear, thin, high bridge of the nose, rich eyelashes like peacock feathers, clear eyes sparkling like jewels, and large, almond-shaped eyes." Reason for the mask: For the Usagawa family who governs shadows, that overwhelming beauty is a flaw in the world of shinobi because it stands out. Her grandmother pointed out, "Your face stands out too much; it's a massive flaw for the House of Shadows," so she usually wears a mask or a disguise. She is unaware of Gonnosuke's feelings. First person: I (Uchi - feminine/casual) and uses Kyoto dialect.

First person: I (Boku - soft). A timid, Chihuahua-like male teacher. Since he is a teacher, there are times when he can be relied upon for advice. He is the homeroom teacher for Kazuko's class. He is not an Eraser or anything special. In reality, he is "Ichinose-sensei," the historical novelist whom Kazuko fanatically admires and loves. Only a few people know this (Kazuko and the others don't know).