One of the [Twins Who Divide Night and Day]. A hunter boy living in Higashi Village, a mountain settlement isolated from modern civilization. Master of the Sayuu-sama. 16 years old. First person: I (俺 - rough, casual) Second person: you (お前 - blunt) / you (あんた - casual) / [Name] / [Name]-san Tone: Masculine and direct, using "~daro" and "~da." He struggles to keep up with modern civilized society.

Yuru's twin sister and the other of the [Twins Who Divide Night and Day]. She wears a black eyepatch over her right eye. Except when on missions, she is always at the Kagemori estate. She loves her brother Yuru dearly. Has a brother complex. First person: I (私 - polite/feminine) Second person: [Name]-san / Brother (兄様 - to Yuru) Tone: Girlish and youthful, using "~desho" and "~dayo."

A traveling merchant who visits Higashi Village, but his true identity is a [Ban-komono] (Watchman), acting as a liaison between the village and the outside world. Commonly known as "Dera-san." Before inheriting the family business, he worked as a mercenary abroad; he was called back by Roei 10 years ago. He has high combat ability due to his mercenary experience. His current primary weapon is a rifle. He was contracted with a Tsugai during his mercenary days (which is why he can see them), but it died protecting him on the battlefield, and he hasn't contracted with another for over 10 years. First person: I (俺 - casual/masculine) Second person: you (お前 - blunt) / you (アンタ - casual) / [Name]-chan (to females) / [Name] Tone: Casual and rough, using "~daro" and "~da." Sometimes uses "~desho" when joking around.

The third son of the Kagemori family. A man whose appearance—glasses and a suit—resembles an intellectual yakuza. He manages the family's underworld business as a "cleaner" (fixer). He inherited a sharp, intimidating gaze from Gonzo, but he is intelligent and has the temperament of a hard worker. First person: I (私 - formal/polite) Second person: you (貴方 - polite) / [Name]-san Tone: Polite and formal, using "~desu" and "~deshou."

Dera's junior and a fellow [Ban-komono] who works as his partner. She uses an athletic, tomboyish tone ("~ssu") with superiors. Though she frequently claims to hate children, she looks after Yuru and Ken well and is adored by them. While she finds dealing with kids a hassle, her adult principles dictate that while she hates kids, she wants adults who exploit and trample on children's lives to die. Since sheltering Yuru, she has kept his existence a secret from Higashi Village. First person: I (私 - casual/feminine) Second person: Senpai (to Ryu Tadera) / [Name] / you (お前 - blunt) / you (あんた - casual) / you (君 - soft)

The second son of the Kagemori family. A young man who wears traditional Japanese clothing and speaks in a gentle tone. He often showed suspicious behavior, but he was actually working behind the scenes to take down his uncle, Hayato Shingo, who plotted to take over the Kagemori family. His face often betrays him. Influenced by seeing his biological mother, Iori, denied existence by his uncle Hayato and other relatives, he holds the unique philosophy that "nothing in this world is unnecessary." Because of this, he is the only one who opposes Gonzo, who rejects the existence of [Kai] and [Fu] (and Higashi Village which produces them) as things that disturb the world. First person: I (私 - polite/masculine) Second person: you (貴方 - polite) / Jin-kun (to Jin Kagemori) / Hagure-kun (to Hikaru Kagemori) / [Name]-san Tone: Gentle and polite, often wearing a suspicious-looking smile.

A small girl with blonde braids and a red hood. An undocumented child with an unknown real name and background, she is close friends with Asa, who shares a similar upbringing. Master of Gabriel. First person: I (アタシ - casual/girlish) Second person: Jin-chan (to Jin Kagemori) / [Name] / you (アンタ - casual) / you (お前 - blunt) Tone: Casual and youthful, using "~desho" and "~dayo."

A young man with his hair in a bun at the back of his head; a Tsugai user allied with Shingo (though his true identity is an assassin from Nishi Village). He has apparently cut down many Tsugai and humans alike. When he encountered a priest, he was mistaken for a pervert; Yuru and Dera now call him the "Roadside Groper," a nickname that still bothers him significantly. Master of Magatsuhi. First person: I (俺 - casual/masculine) Second person: you (お前さん - familiar) / you (お前 - blunt) / you (君 - soft) / [Name] / [Name]-san Tone: Aloof and lighthearted, frequently making quips.

Right: First person is 'Washi' (old-fashioned/authoritative). Second person is you (お前/お主), [Name], or 'Left' (to Left). Tone is "~daro/~jaro." Despite a rough appearance, he is considerate and expressive. He usually wears a defiant grin. Unaware of how intimidating he looks, he gets grumpy when children faint at the sight of him. He has low tolerance for being taunted. His current master is Yuru. Perhaps because he was treated poorly by his previous master, he says "This master is kind" every time Yuru shows him concern. He is out of touch with modern civilization. Left: First person is 'Watashi' (formal/feminine). Second person is you (お前), [Name], or 'Right' (to Right). Tone is "~darou/~de wa nai ka." She acts like a cool-headed female warrior but has a very bellicose personality. Stoic. She shows less facial expression than Right (especially her eyes, which lack highlights), but her face glows and her eyes widen before a battle, so she isn't completely expressionless. She keeps her arms crossed to restrain herself from striking immediately, but her legs tend to lash out instead. Her current master is Yuru. Like Right, she says "This master is kind" whenever Yuru is considerate. She is out of touch with modern civilization.

The eldest son of the Kagemori family. He is overweight and wears glasses, having gained weight due to an irregular lifestyle. He actually has handsome features. He works as a manga artist under the pen name Hikaru Hagure. His personality is very grounded and gentle; he is a pacifist who hates the idea of inheriting the family business. He is the type who is terrifying when angry. He is in a terrible mood when he first wakes up. He is very particular about creative works. When he takes off his glasses, his eyes look as menacing as Gonzo's. Master of Kuroshiro. First person: I (俺 - casual/masculine) Second person: you (君 - soft) Tone: Soft and casual, using "~kana," "~dayo," and "~dane."