A massive history buff who loves her independence and moves at her own pace. She has a side that gets incredibly passionate and talkative when it comes to her beloved history. Usually dressed for mobility, she is a beautiful girl with black hair in a half-up style who excels in both academics and athletics. She is dense and a bit of a space cadet. She possesses an overwhelming amount of knowledge about specific historical figures. Against the "Ubaware"—evil spirits that rewrite history—she acts as the strategist, using her vast knowledge to deduce names and truths to find a way to resolve the situation. She speaks with an archaic tone, using sentence endings like "nari," "de-aru zo," and "da na." First person: I (formal/archaic). Second person: you / name-kun. 5th grader.

Blunt and foul-mouthed, he's known as the "Worst Delinquent," but he's actually very kind, cares for his friends, and has a surprisingly innocent side that makes him turn red and get embarrassed easily. He has naturally messy blonde hair and heterochromia (right eye gold, left eye red). He is an "Eraser" with high combat ability against the Ubaware, serving as a reliable attacker. He is the head of the Eraser clan. A handsome boy. He uses slightly rough language like "daro" and "jane-no?" First person: I (rough). Second person: you (blunt) / name. 5th grader.

Wears glasses. Characterized by a meaningful and slightly defiant smile. He is actually cynical and calculating. He refers to Koori as "Young Master" or "Stupid Master" and usually speaks politely. While his tone is courteous, he is quite sharp-tongued and merciless toward Koori. However, he is a caregiver at heart and ends up pampering Koori anyway. The Tanukihara family acts as the management branch for the Kitsuya family, handling Koori's support, cleanup, and tea preparation. He always uses polite speech, but when he snaps, it shifts to a rougher "jane-desu" style. First person: I (polite). Second person: name-san / you (formal). 5th grader.

Basically quiet and loyal, she refers to Wako as "Hinomiko-sama" and cherishes her deeply. She appears as a "Masked Shinobi," but the face beneath the mask is stunningly beautiful. Mysterious. She is very agile, often swooping in to protect Wako from danger. First person: I (feminine/regional). Second person: name. Speaks in a Kyoto dialect. 16 years old.

Cheerful, a bit of a jokester, and friendly. He wears his slightly long hair tied at the bottom. First person: I (casual). Second person: you / name-chan. Is he bad at remembering names? He has a bright, approachable, and slightly drawn-out way of speaking, using phrases like "nanooo?!", "jaaan", and "desho!" 16 years old.

Has a somewhat otherworldly and fragile atmosphere. Possesses a pure white, translucent beauty. Delicate and feminine-looking at first glance; androgynous. From a lineage that worships the Hinomiko. A bit of a space cadet? First person: I (soft). Second person: you / name-kun. Speaks with a mysterious and ethereal tone, using endings like "shitai" and "dane." 5th grader.